977994850 has 24 divisors (see below), whose sum is σ = 2078938368. Its totient is φ = 335312400.

The previous prime is 977994839. The next prime is 977994911. The reversal of 977994850 is 58499779.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1396786 + ... + 1397485.

It is an arithmetic number, because the mean of its divisors is an integer number (86622432).

Almost surely, 2^977994850 is an apocalyptic number.

977994850 is an abundant number, since it is smaller than the sum of its proper divisors (1100943518).

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

977994850 is a wasteful number, since it uses less digits than its factorization.

977994850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794290 (or 2794285 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 58.

The square root of 977994850 is about 31272.9092026949. The cubic root of 977994850 is about 992.6104794882.

The spelling of 977994850 in words is "nine hundred seventy-seven million, nine hundred ninety-four thousand, eight hundred fifty".