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1055689 is a prime number
BaseRepresentation
bin100000001101111001001
31222122010121
410001233021
5232240224
634343241
711654545
oct4015711
91878117
101055689
11661178
1242ab21
132ac68b
141d6a25
1515cbe4
hex101bc9

1055689 has 2 divisors, whose sum is σ = 1055690. Its totient is φ = 1055688.

The previous prime is 1055671. The next prime is 1055713. The reversal of 1055689 is 9865501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537289 + 518400 = 733^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055689 - 217 = 924617 is a prime.

It is a super-2 number, since 2×10556892 = 2228958529442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1055609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527844 + 527845.

It is an arithmetic number, because the mean of its divisors is an integer number (527845).

21055689 is an apocalyptic number.

It is an amenable number.

1055689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055689 is an equidigital number, since it uses as much as digits as its factorization.

1055689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1055689 is about 1027.4672744180. The cubic root of 1055689 is about 101.8228695613.

The spelling of 1055689 in words is "one million, fifty-five thousand, six hundred eighty-nine".