977126087 has 16 divisors (see below), whose sum is σ = 1159460160. Its totient is φ = 805690368.

The previous prime is 977126041. The next prime is 977126149. The reversal of 977126087 is 780621779.

It is not a de Polignac number, because 977126087 - 2¹⁰ = 977125063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977125087) 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, 47543 + ... + 64919.

It is an arithmetic number, because the mean of its divisors is an integer number (72466260).

Almost surely, 2^977126087 is an apocalyptic number.

977126087 is a deficient number, since it is larger than the sum of its proper divisors (182334073).

977126087 is a wasteful number, since it uses less digits than its factorization.

977126087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17690.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 977126087 is about 31259.0160913615. The cubic root of 977126087 is about 992.3164770106.

The spelling of 977126087 in words is "nine hundred seventy-seven million, one hundred twenty-six thousand, eighty-seven".