977073408 has 72 divisors (see below), whose sum is σ = 2889398400. Its totient is φ = 325688832.

The previous prime is 977073403. The next prime is 977073421. The reversal of 977073408 is 804370779.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977073401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63768 + ... + 77591.

Almost surely, 2^977073408 is an apocalyptic number.

It is an amenable number.

977073408 is an abundant number, since it is smaller than the sum of its proper divisors (1912324992).

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

977073408 is a wasteful number, since it uses less digits than its factorization.

977073408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141384 (or 141364 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 977073408 is about 31258.1734591131. The cubic root of 977073408 is about 992.2986440411.

The spelling of 977073408 in words is "nine hundred seventy-seven million, seventy-three thousand, four hundred eight".