977267945 has 16 divisors (see below), whose sum is σ = 1260714240. Its totient is φ = 724904064.

The previous prime is 977267909. The next prime is 977267969. The reversal of 977267945 is 549762779.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977267945 is a prime.

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, 104972 + ... + 113901.

It is an arithmetic number, because the mean of its divisors is an integer number (78794640).

Almost surely, 2^977267945 is an apocalyptic number.

977267945 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

977267945 is a deficient number, since it is larger than the sum of its proper divisors (283446295).

977267945 is a wasteful number, since it uses less digits than its factorization.

977267945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218944.

The product of its digits is 6667920, while the sum is 56.

The square root of 977267945 is about 31261.2850823507. The cubic root of 977267945 is about 992.3644957945.

The spelling of 977267945 in words is "nine hundred seventy-seven million, two hundred sixty-seven thousand, nine hundred forty-five".