1056629817 has 12 divisors (see below), whose sum is σ = 1527292884. Its totient is φ = 703935360.

The previous prime is 1056629807. The next prime is 1056629857. The reversal of 1056629817 is 7189266501.

1056629817 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 629 + 8 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 309372921 + 747256896 = 17589^2 + 27336^2 .

It is not a de Polignac number, because 1056629817 - 2⁴ = 1056629801 is a prime.

It is a super-2 number, since 2×1056629817² = 2232933140346906978, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1056629807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26308 + ... + 52965.

It is an arithmetic number, because the mean of its divisors is an integer number (127274407).

Almost surely, 2^1056629817 is an apocalyptic number.

It is an amenable number.

1056629817 is a deficient number, since it is larger than the sum of its proper divisors (470663067).

1056629817 is a wasteful number, since it uses less digits than its factorization.

1056629817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80760 (or 80757 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1056629817 is about 32505.8428132544. The cubic root of 1056629817 is about 1018.5310834162.

The spelling of 1056629817 in words is "one billion, fifty-six million, six hundred twenty-nine thousand, eight hundred seventeen".