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4091069 is a prime number
BaseRepresentation
bin1111100110110010111101
321200211220002
433212302331
52021403234
6223404045
746526213
oct17466275
97624802
104091069
112344754
121453625
13b03168
14786cb3
1555c27e
hex3e6cbd

4091069 has 2 divisors, whose sum is σ = 4091070. Its totient is φ = 4091068.

The previous prime is 4091047. The next prime is 4091071. The reversal of 4091069 is 9601904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2439844 + 1651225 = 1562^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 4091069 - 28 = 4090813 is a prime.

It is a super-2 number, since 2×40910692 = 33473691125522, which contains 22 as substring.

Together with 4091071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4091369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045534 + 2045535.

It is an arithmetic number, because the mean of its divisors is an integer number (2045535).

Almost surely, 24091069 is an apocalyptic number.

It is an amenable number.

4091069 is a deficient number, since it is larger than the sum of its proper divisors (1).

4091069 is an equidigital number, since it uses as much as digits as its factorization.

4091069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 4091069 is about 2022.6391175887. The cubic root of 4091069 is about 159.9357684887.

The spelling of 4091069 in words is "four million, ninety-one thousand, sixty-nine".