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2690957 is a prime number
BaseRepresentation
bin1010010000111110001101
312001201022002
422100332031
51142102312
6133402045
731605233
oct12207615
95051262
102690957
111578835
12a99325
13732aa9
14500953
153824c2
hex290f8d

2690957 has 2 divisors, whose sum is σ = 2690958. Its totient is φ = 2690956.

The previous prime is 2690923. The next prime is 2690959. The reversal of 2690957 is 7590962.

2690957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2515396 + 175561 = 1586^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690957 - 212 = 2686861 is a prime.

Together with 2690959, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2690957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2690959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345478 + 1345479.

It is an arithmetic number, because the mean of its divisors is an integer number (1345479).

22690957 is an apocalyptic number.

It is an amenable number.

2690957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690957 is an equidigital number, since it uses as much as digits as its factorization.

2690957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2690957 is about 1640.4136673413. The cubic root of 2690957 is about 139.0920322836.

The spelling of 2690957 in words is "two million, six hundred ninety thousand, nine hundred fifty-seven".