977990006 has 32 divisors (see below), whose sum is σ = 1719843840. Its totient is φ = 408396096.

The previous prime is 977989993. The next prime is 977990009. The reversal of 977990006 is 600099779.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977990009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150125 + ... + 156503.

It is an arithmetic number, because the mean of its divisors is an integer number (53745120).

Almost surely, 2^977990006 is an apocalyptic number.

977990006 is a deficient number, since it is larger than the sum of its proper divisors (741853834).

977990006 is a wasteful number, since it uses less digits than its factorization.

977990006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 977990006 is about 31272.8317553751. The cubic root of 977990006 is about 992.6088406885.

The spelling of 977990006 in words is "nine hundred seventy-seven million, nine hundred ninety thousand, six".