977746308 has 288 divisors, whose sum is σ = 3103134720. Its totient is φ = 233798400.

The previous prime is 977746303. The next prime is 977746321. The reversal of 977746308 is 803647779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977746303) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11780035 + ... + 11780117.

Almost surely, 2^977746308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977746308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1551567360).

977746308 is an abundant number, since it is smaller than the sum of its proper divisors (2125388412).

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

977746308 is a wasteful number, since it uses less digits than its factorization.

977746308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 51.

The square root of 977746308 is about 31268.9351913365. The cubic root of 977746308 is about 992.5263869202.

The spelling of 977746308 in words is "nine hundred seventy-seven million, seven hundred forty-six thousand, three hundred eight".