9976881 has 16 divisors (see below), whose sum is σ = 14149440. Its totient is φ = 6235200.

The previous prime is 9976873. The next prime is 9976913. The reversal of 9976881 is 1886799.

It is a happy number.

It is not a de Polignac number, because 9976881 - 2³ = 9976873 is a prime.

It is a super-2 number, since 2×9976881² = 199076308976322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9976881.

It is not an unprimeable number, because it can be changed into a prime (9976801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4891 + ... + 6623.

It is an arithmetic number, because the mean of its divisors is an integer number (884340).

Almost surely, 2^9976881 is an apocalyptic number.

It is an amenable number.

9976881 is a deficient number, since it is larger than the sum of its proper divisors (4172559).

9976881 is a wasteful number, since it uses less digits than its factorization.

9976881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its digits is 217728, while the sum is 48.

The square root of 9976881 is about 3158.6201101114. The cubic root of 9976881 is about 215.2773129733.

The spelling of 9976881 in words is "nine million, nine hundred seventy-six thousand, eight hundred eighty-one".