976887947 has 16 divisors (see below), whose sum is σ = 1176314880. Its totient is φ = 793137312.

The previous prime is 976887931. The next prime is 976887973. The reversal of 976887947 is 749788679.

It is a cyclic number.

It is not a de Polignac number, because 976887947 - 2⁴ = 976887931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (976881947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12872 + ... + 46037.

It is an arithmetic number, because the mean of its divisors is an integer number (73519680).

Almost surely, 2^976887947 is an apocalyptic number.

976887947 is a deficient number, since it is larger than the sum of its proper divisors (199426933).

976887947 is a wasteful number, since it uses less digits than its factorization.

976887947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59042.

The product of its digits is 42674688, while the sum is 65.

The square root of 976887947 is about 31255.2067182414. The cubic root of 976887947 is about 992.2358564203.

The spelling of 976887947 in words is "nine hundred seventy-six million, eight hundred eighty-seven thousand, nine hundred forty-seven".