31089096 has 40 divisors (see below), whose sum is σ = 87080070. Its totient is φ = 10362816.

The previous prime is 31089083. The next prime is 31089101. The reversal of 31089096 is 69098013.

It can be written as a sum of positive squares in only one way, i.e., 16112196 + 14976900 = 4014^2 + 3870^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 31089096.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23341 + ... + 24636.

Almost surely, 2^31089096 is an apocalyptic number.

31089096 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31089096 is an abundant number, since it is smaller than the sum of its proper divisors (55990974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31089096 is a wasteful number, since it uses less digits than its factorization.

31089096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47995 (or 47982 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 31089096 is about 5575.7596791827. The cubic root of 31089096 is about 314.4387284032.

The spelling of 31089096 in words is "thirty-one million, eighty-nine thousand, ninety-six".