977628390 has 32 divisors (see below), whose sum is σ = 2356394976. Its totient is φ = 259580160.

The previous prime is 977628383. The next prime is 977628419. The reversal of 977628390 is 93826779.

It is a Curzon number.

It is a congruent number.

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, 62941 + ... + 76920.

It is an arithmetic number, because the mean of its divisors is an integer number (73637343).

Almost surely, 2^977628390 is an apocalyptic number.

977628390 is an abundant number, since it is smaller than the sum of its proper divisors (1378766586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977628390 is a wasteful number, since it uses less digits than its factorization.

977628390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140104.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 977628390 is about 31267.0495889842. The cubic root of 977628390 is about 992.4864851478.

The spelling of 977628390 in words is "nine hundred seventy-seven million, six hundred twenty-eight thousand, three hundred ninety".