977129776 has 30 divisors (see below), whose sum is σ = 2202282780. Its totient is φ = 418769568.

The previous prime is 977129759. The next prime is 977129779. The reversal of 977129776 is 677921779.

977129776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (977129779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622386 + ... + 623953.

It is an arithmetic number, because the mean of its divisors is an integer number (73409426).

Almost surely, 2^977129776 is an apocalyptic number.

It is an amenable number.

977129776 is an abundant number, since it is smaller than the sum of its proper divisors (1225153004).

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

977129776 is a wasteful number, since it uses less digits than its factorization.

977129776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246361 (or 1246348 counting only the distinct ones).

The product of its digits is 2333772, while the sum is 55.

The square root of 977129776 is about 31259.0750982815. The cubic root of 977129776 is about 992.3177257921.

The spelling of 977129776 in words is "nine hundred seventy-seven million, one hundred twenty-nine thousand, seven hundred seventy-six".