977994 has 20 divisors (see below), whose sum is σ = 2191794. Its totient is φ = 325944.

The previous prime is 977971. The next prime is 978001. The reversal of 977994 is 499779.

It can be written as a sum of positive squares in only one way, i.e., 927369 + 50625 = 963^2 + 225^2 .

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 9 ways as a sum of consecutive naturals, for example, 2857 + ... + 3180.

2⁹⁷⁷⁹⁹⁴ is an apocalyptic number.

977994 is an abundant number, since it is smaller than the sum of its proper divisors (1213800).

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

977994 is a wasteful number, since it uses less digits than its factorization.

977994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6051 (or 6042 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 977994 is about 988.9357916468. The cubic root of 977994 is about 99.2610191921.

The spelling of 977994 in words is "nine hundred seventy-seven thousand, nine hundred ninety-four".