977944 has 16 divisors (see below), whose sum is σ = 2000520. Its totient is φ = 444480.

The previous prime is 977927. The next prime is 977971. The reversal of 977944 is 449779.

977944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 977897 and 977906.

It is a congruent number.

It is an unprimeable number.

977944 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5469 + ... + 5644.

2⁹⁷⁷⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

977944 is an abundant number, since it is smaller than the sum of its proper divisors (1022576).

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

977944 is a wasteful number, since it uses less digits than its factorization.

977944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130 (or 11126 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 977944 is about 988.9105116238. The cubic root of 977944 is about 99.2593275881.

The spelling of 977944 in words is "nine hundred seventy-seven thousand, nine hundred forty-four".