89199631 has 4 divisors (see below), whose sum is σ = 89747032. Its totient is φ = 88652232.

The previous prime is 89199577. The next prime is 89199647. The reversal of 89199631 is 13699198.

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

It is a cyclic number.

It is not a de Polignac number, because 89199631 - 2¹⁹ = 88675343 is a prime.

It is a super-2 number, since 2×89199631² = 15913148341072322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89199031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273456 + ... + 273781.

It is an arithmetic number, because the mean of its divisors is an integer number (22436758).

Almost surely, 2^89199631 is an apocalyptic number.

89199631 is a deficient number, since it is larger than the sum of its proper divisors (547401).

89199631 is a wasteful number, since it uses less digits than its factorization.

89199631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547400.

The product of its digits is 104976, while the sum is 46.

The square root of 89199631 is about 9444.5556274501. Note that the first 3 decimals coincide. The cubic root of 89199631 is about 446.8080810744.

The spelling of 89199631 in words is "eighty-nine million, one hundred ninety-nine thousand, six hundred thirty-one".