977481888 has 96 divisors (see below), whose sum is σ = 2663539200. Its totient is φ = 313506816.

The previous prime is 977481877. The next prime is 977481893. The reversal of 977481888 is 888184779.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 1333170 + ... + 1333902.

It is an arithmetic number, because the mean of its divisors is an integer number (27745200).

Almost surely, 2^977481888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977481888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331769600).

977481888 is an abundant number, since it is smaller than the sum of its proper divisors (1686057312).

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

977481888 is a wasteful number, since it uses less digits than its factorization.

977481888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254 (or 1246 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 60.

The square root of 977481888 is about 31264.7067473853. The cubic root of 977481888 is about 992.4369064871.

The spelling of 977481888 in words is "nine hundred seventy-seven million, four hundred eighty-one thousand, eight hundred eighty-eight".