977490330 has 32 divisors (see below), whose sum is σ = 2347441344. Its totient is φ = 260501376.

The previous prime is 977490323. The next prime is 977490331. The reversal of 977490330 is 33094779.

It is not an unprimeable number, because it can be changed into a prime (977490331) 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, 43297 + ... + 61883.

It is an arithmetic number, because the mean of its divisors is an integer number (73357542).

Almost surely, 2^977490330 is an apocalyptic number.

977490330 is an abundant number, since it is smaller than the sum of its proper divisors (1369951014).

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

977490330 is a wasteful number, since it uses less digits than its factorization.

977490330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20350.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 977490330 is about 31264.8417555567. The cubic root of 977490330 is about 992.4397635318.

The spelling of 977490330 in words is "nine hundred seventy-seven million, four hundred ninety thousand, three hundred thirty".