977231288 has 32 divisors (see below), whose sum is σ = 2001006720. Its totient is φ = 443724000.

The previous prime is 977231273. The next prime is 977231317. The reversal of 977231288 is 882132779.

It is a super-2 number, since 2×977231288² = 1909961980492277888, which contains 22 as substring.

It is a plaindrome in base 12.

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 7 ways as a sum of consecutive naturals, for example, 85343 + ... + 96113.

It is an arithmetic number, because the mean of its divisors is an integer number (62531460).

Almost surely, 2^977231288 is an apocalyptic number.

It is an amenable number.

977231288 is an abundant number, since it is smaller than the sum of its proper divisors (1023775432).

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

977231288 is a wasteful number, since it uses less digits than its factorization.

977231288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11819 (or 11815 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The square root of 977231288 is about 31260.6987765789. The cubic root of 977231288 is about 992.3520878838.

The spelling of 977231288 in words is "nine hundred seventy-seven million, two hundred thirty-one thousand, two hundred eighty-eight".