977377005 has 96 divisors (see below), whose sum is σ = 2060173440. Its totient is φ = 422461440.

The previous prime is 977377003. The next prime is 977377031. The reversal of 977377005 is 500773779.

It is not a de Polignac number, because 977377005 - 2¹ = 977377003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977377001) 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, 156829 + ... + 162941.

It is an arithmetic number, because the mean of its divisors is an integer number (21460140).

Almost surely, 2^977377005 is an apocalyptic number.

977377005 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

977377005 is an abundant number, since it is smaller than the sum of its proper divisors (1082796435).

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

977377005 is a wasteful number, since it uses less digits than its factorization.

977377005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171 (or 6168 counting only the distinct ones).

The product of its (nonzero) digits is 324135, while the sum is 45.

The square root of 977377005 is about 31263.0293637709. The cubic root of 977377005 is about 992.4014093304.

The spelling of 977377005 in words is "nine hundred seventy-seven million, three hundred seventy-seven thousand, five".