977933906 has 4 divisors (see below), whose sum is σ = 1466900862. Its totient is φ = 488966952.

The previous prime is 977933867. The next prime is 977933917. The reversal of 977933906 is 609339779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609339779 = 5323 ⋅114473.

It can be written as a sum of positive squares in only one way, i.e., 607178881 + 370755025 = 24641^2 + 19255^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244483475 + ... + 244483478.

Almost surely, 2^977933906 is an apocalyptic number.

977933906 is a deficient number, since it is larger than the sum of its proper divisors (488966956).

977933906 is a wasteful number, since it uses less digits than its factorization.

977933906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488966955.

The product of its (nonzero) digits is 1928934, while the sum is 53.

The square root of 977933906 is about 31271.9347978343. The cubic root of 977933906 is about 992.5898608010.

The spelling of 977933906 in words is "nine hundred seventy-seven million, nine hundred thirty-three thousand, nine hundred six".