8931056977 has 4 divisors (see below), whose sum is σ = 9099567540. Its totient is φ = 8762546416.

The previous prime is 8931056969. The next prime is 8931056987. The reversal of 8931056977 is 7796501398.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3718072576 + 5212984401 = 60976^2 + 72201^2 .

It is a cyclic number.

It is not a de Polignac number, because 8931056977 - 2³ = 8931056969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8931056987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84255202 + ... + 84255307.

It is an arithmetic number, because the mean of its divisors is an integer number (2274891885).

Almost surely, 2^8931056977 is an apocalyptic number.

It is an amenable number.

8931056977 is a deficient number, since it is larger than the sum of its proper divisors (168510563).

8931056977 is a wasteful number, since it uses less digits than its factorization.

8931056977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168510562.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The square root of 8931056977 is about 94504.2696231234. The cubic root of 8931056977 is about 2074.7588224649.

The spelling of 8931056977 in words is "eight billion, nine hundred thirty-one million, fifty-six thousand, nine hundred seventy-seven".