89519631 has 8 divisors (see below), whose sum is σ = 121899264. Its totient is φ = 58409880.

The previous prime is 89519623. The next prime is 89519653. The reversal of 89519631 is 13691598.

89519631 = 929² + 930² + ... + 1022².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89519631 - 2³ = 89519623 is a prime.

It is a super-2 number, since 2×89519631² = 16027528668752322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89519531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317305 + ... + 317586.

It is an arithmetic number, because the mean of its divisors is an integer number (15237408).

Almost surely, 2^89519631 is an apocalyptic number.

89519631 is a deficient number, since it is larger than the sum of its proper divisors (32379633).

89519631 is a wasteful number, since it uses less digits than its factorization.

89519631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634941.

The product of its digits is 58320, while the sum is 42.

The square root of 89519631 is about 9461.4814379145. The cubic root of 89519631 is about 447.3417452749.

The spelling of 89519631 in words is "eighty-nine million, five hundred nineteen thousand, six hundred thirty-one".