1056764985 has 16 divisors (see below), whose sum is σ = 1700274240. Its totient is φ = 560457920.

The previous prime is 1056764977. The next prime is 1056765001. The reversal of 1056764985 is 5894676501.

It is not a de Polignac number, because 1056764985 - 2³ = 1056764977 is a prime.

It is a super-2 number, since 2×1056764985² = 2233504467044100450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194106 + ... + 199475.

It is an arithmetic number, because the mean of its divisors is an integer number (106267140).

Almost surely, 2^1056764985 is an apocalyptic number.

1056764985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1056764985 is a deficient number, since it is larger than the sum of its proper divisors (643509255).

1056764985 is a wasteful number, since it uses less digits than its factorization.

1056764985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393768.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 1056764985 is about 32507.9218806739. The cubic root of 1056764985 is about 1018.5745129874.

The spelling of 1056764985 in words is "one billion, fifty-six million, seven hundred sixty-four thousand, nine hundred eighty-five".