977542408 has 16 divisors (see below), whose sum is σ = 1833240060. Its totient is φ = 488678400.

The previous prime is 977542373. The next prime is 977542417. The reversal of 977542408 is 804245779.

It can be written as a sum of positive squares in 2 ways, for example, as 924281604 + 53260804 = 30402^2 + 7298^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57088 + ... + 72208.

Almost surely, 2^977542408 is an apocalyptic number.

It is an amenable number.

977542408 is a deficient number, since it is larger than the sum of its proper divisors (855697652).

977542408 is a wasteful number, since it uses less digits than its factorization.

977542408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23208 (or 23204 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 977542408 is about 31265.6745969122. The cubic root of 977542408 is about 992.4573880404.

The spelling of 977542408 in words is "nine hundred seventy-seven million, five hundred forty-two thousand, four hundred eight".