977444216 has 16 divisors (see below), whose sum is σ = 2094523440. Its totient is φ = 418904640.

The previous prime is 977444213. The next prime is 977444243. The reversal of 977444216 is 612444779.

977444216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977444213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8727125 + ... + 8727236.

It is an arithmetic number, because the mean of its divisors is an integer number (130907715).

Almost surely, 2^977444216 is an apocalyptic number.

It is an amenable number.

977444216 is an abundant number, since it is smaller than the sum of its proper divisors (1117079224).

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

977444216 is a wasteful number, since it uses less digits than its factorization.

977444216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17454374 (or 17454370 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 977444216 is about 31264.1042731117. The cubic root of 977444216 is about 992.4241568686.

The spelling of 977444216 in words is "nine hundred seventy-seven million, four hundred forty-four thousand, two hundred sixteen".