977897000 has 32 divisors (see below), whose sum is σ = 2288281320. Its totient is φ = 391158400.

The previous prime is 977896991. The next prime is 977897017. The reversal of 977897000 is 798779.

It can be written as a sum of positive squares in 4 ways, for example, as 360772036 + 617124964 = 18994^2 + 24842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487949 + ... + 489948.

Almost surely, 2^977897000 is an apocalyptic number.

It is an amenable number.

977897000 is an abundant number, since it is smaller than the sum of its proper divisors (1310384320).

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

977897000 is a wasteful number, since it uses less digits than its factorization.

977897000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977918 (or 977904 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 47.

The square root of 977897000 is about 31271.3447104534. The cubic root of 977897000 is about 992.5773742782.

The spelling of 977897000 in words is "nine hundred seventy-seven million, eight hundred ninety-seven thousand".