88288731 has 16 divisors (see below), whose sum is σ = 135309600. Its totient is φ = 56829024.

The previous prime is 88288729. The next prime is 88288807. The reversal of 88288731 is 13788288.

It is a happy number.

It is not a de Polignac number, because 88288731 - 2¹ = 88288729 is a prime.

It is a super-2 number, since 2×88288731² = 15589800043180722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88288631) 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, 55596 + ... + 57161.

It is an arithmetic number, because the mean of its divisors is an integer number (8456850).

Almost surely, 2^88288731 is an apocalyptic number.

88288731 is a deficient number, since it is larger than the sum of its proper divisors (47020869).

88288731 is a wasteful number, since it uses less digits than its factorization.

88288731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112795 (or 112789 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 88288731 is about 9396.2083310237. The cubic root of 88288731 is about 445.2819506799.

The spelling of 88288731 in words is "eighty-eight million, two hundred eighty-eight thousand, seven hundred thirty-one".