977905970 has 16 divisors (see below), whose sum is σ = 1797683328. Its totient is φ = 382839600.

The previous prime is 977905921. The next prime is 977905979. The reversal of 977905970 is 79509779.

It is not an unprimeable number, because it can be changed into a prime (977905979) 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, 1039856 + ... + 1040795.

It is an arithmetic number, because the mean of its divisors is an integer number (112355208).

Almost surely, 2^977905970 is an apocalyptic number.

977905970 is a deficient number, since it is larger than the sum of its proper divisors (819777358).

977905970 is a wasteful number, since it uses less digits than its factorization.

977905970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080705.

The product of its (nonzero) digits is 1250235, while the sum is 53.

The square root of 977905970 is about 31271.4881321628. The cubic root of 977905970 is about 992.5804091553.

The spelling of 977905970 in words is "nine hundred seventy-seven million, nine hundred five thousand, nine hundred seventy".