977888 has 12 divisors (see below), whose sum is σ = 1925280. Its totient is φ = 488928.

The previous prime is 977881. The next prime is 977897. The reversal of 977888 is 888779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15248 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (160440).

2⁹⁷⁷⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

977888 is a deficient number, since it is larger than the sum of its proper divisors (947392).

977888 is a wasteful number, since it uses less digits than its factorization.

977888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30569 (or 30561 counting only the distinct ones).

The product of its digits is 225792, while the sum is 47.

The square root of 977888 is about 988.8821972308. The cubic root of 977888 is about 99.2574329232.

The spelling of 977888 in words is "nine hundred seventy-seven thousand, eight hundred eighty-eight".