977128412 has 96 divisors (see below), whose sum is σ = 2007742464. Its totient is φ = 412473600.

The previous prime is 977128391. The next prime is 977128421. The reversal of 977128412 is 214821779.

It is a self number, because there is not a number n which added to its sum of digits gives 977128412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3141737 + ... + 3142047.

It is an arithmetic number, because the mean of its divisors is an integer number (20913984).

Almost surely, 2^977128412 is an apocalyptic number.

977128412 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

977128412 is an abundant number, since it is smaller than the sum of its proper divisors (1030614052).

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

977128412 is a wasteful number, since it uses less digits than its factorization.

977128412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 977128412 is about 31259.0532806098. The cubic root of 977128412 is about 992.3172640582.

It can be divided in two parts, 9771 and 28412, that added together give a palindrome (38183).

The spelling of 977128412 in words is "nine hundred seventy-seven million, one hundred twenty-eight thousand, four hundred twelve".