976946881 has 4 divisors (see below), whose sum is σ = 978390612. Its totient is φ = 975503152.

The previous prime is 976946879. The next prime is 976946909. The reversal of 976946881 is 188649679.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 817960000 + 158986881 = 28600^2 + 12609^2 .

It is a cyclic number.

It is not a de Polignac number, because 976946881 - 2¹ = 976946879 is a prime.

It is a super-2 number, since 2×976946881² = 1908850416591256322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (976946821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720850 + ... + 722203.

It is an arithmetic number, because the mean of its divisors is an integer number (244597653).

Almost surely, 2^976946881 is an apocalyptic number.

It is an amenable number.

976946881 is a deficient number, since it is larger than the sum of its proper divisors (1443731).

976946881 is a wasteful number, since it uses less digits than its factorization.

976946881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443730.

The product of its digits is 5225472, while the sum is 58.

The square root of 976946881 is about 31256.1494909402. The cubic root of 976946881 is about 992.2558093236.

The spelling of 976946881 in words is "nine hundred seventy-six million, nine hundred forty-six thousand, eight hundred eighty-one".