977884 has 6 divisors (see below), whose sum is σ = 1711304. Its totient is φ = 488940.

The previous prime is 977881. The next prime is 977897. The reversal of 977884 is 488779.

It is a self number, because there is not a number n which added to its sum of digits gives 977884.

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, 122232 + ... + 122239.

2⁹⁷⁷⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

977884 is a deficient number, since it is larger than the sum of its proper divisors (733420).

977884 is a wasteful number, since it uses less digits than its factorization.

977884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244475 (or 244473 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 977884 is about 988.8801747431. The cubic root of 977884 is about 99.2572975873.

The spelling of 977884 in words is "nine hundred seventy-seven thousand, eight hundred eighty-four".