890938977 has 16 divisors (see below), whose sum is σ = 1246348800. Its totient is φ = 565372800.

The previous prime is 890938969. The next prime is 890939033. The reversal of 890938977 is 779839098.

It is a happy number.

It is not a de Polignac number, because 890938977 - 2³ = 890938969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 890938977.

It is not an unprimeable number, because it can be changed into a prime (890930977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72852 + ... + 84197.

It is an arithmetic number, because the mean of its divisors is an integer number (77896800).

Almost surely, 2^890938977 is an apocalyptic number.

It is an amenable number.

890938977 is a deficient number, since it is larger than the sum of its proper divisors (355409823).

890938977 is a wasteful number, since it uses less digits than its factorization.

890938977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157144.

The product of its (nonzero) digits is 6858432, while the sum is 60.

The square root of 890938977 is about 29848.6009219863. The cubic root of 890938977 is about 962.2383306670.

The spelling of 890938977 in words is "eight hundred ninety million, nine hundred thirty-eight thousand, nine hundred seventy-seven".