89756631 has 12 divisors (see below), whose sum is σ = 129763920. Its totient is φ = 59784480.

The previous prime is 89756621. The next prime is 89756663. The reversal of 89756631 is 13665798.

It is a happy number.

89756631 is a `hidden beast` number, since 8 + 9 + 7 + 5 + 6 + 631 = 666.

It is not a de Polignac number, because 89756631 - 2⁵ = 89756599 is a prime.

It is a super-2 number, since 2×89756631² = 16112505616940322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89756621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8091 + ... + 15651.

It is an arithmetic number, because the mean of its divisors is an integer number (10813660).

Almost surely, 2^89756631 is an apocalyptic number.

89756631 is a deficient number, since it is larger than the sum of its proper divisors (40007289).

89756631 is a wasteful number, since it uses less digits than its factorization.

89756631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8886 (or 8883 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 89756631 is about 9473.9976250789. The cubic root of 89756631 is about 447.7361711249.

Adding to 89756631 its sum of digits (45), we get a square (89756676 = 9474²).

The spelling of 89756631 in words is "eighty-nine million, seven hundred fifty-six thousand, six hundred thirty-one".