88431331 has 8 divisors (see below), whose sum is σ = 93715920. Its totient is φ = 83155968.

The previous prime is 88431323. The next prime is 88431359. The reversal of 88431331 is 13313488.

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

It is a cyclic number.

It is not a de Polignac number, because 88431331 - 2³ = 88431323 is a prime.

It is a super-2 number, since 2×88431331² = 15640200604863122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88431293 and 88431302.

It is not an unprimeable number, because it can be changed into a prime (88431361) 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, 33000 + ... + 35578.

It is an arithmetic number, because the mean of its divisors is an integer number (11714490).

Almost surely, 2^88431331 is an apocalyptic number.

88431331 is a deficient number, since it is larger than the sum of its proper divisors (5284589).

88431331 is a wasteful number, since it uses less digits than its factorization.

88431331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613.

The product of its digits is 6912, while the sum is 31.

The square root of 88431331 is about 9403.7934366935. The cubic root of 88431331 is about 445.5215548746.

The spelling of 88431331 in words is "eighty-eight million, four hundred thirty-one thousand, three hundred thirty-one".