88681931 has 8 divisors (see below), whose sum is σ = 96655440. Its totient is φ = 80872992.

The previous prime is 88681927. The next prime is 88681973. The reversal of 88681931 is 13918688.

It is a happy number.

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 88681931 - 2² = 88681927 is a prime.

It is a super-2 number, since 2×88681931² = 15728969771777522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88681991) 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, 40016 + ... + 42173.

It is an arithmetic number, because the mean of its divisors is an integer number (12081930).

Almost surely, 2^88681931 is an apocalyptic number.

88681931 is a deficient number, since it is larger than the sum of its proper divisors (7973509).

88681931 is a wasteful number, since it uses less digits than its factorization.

88681931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82285.

The product of its digits is 82944, while the sum is 44.

The square root of 88681931 is about 9417.1084203167. The cubic root of 88681931 is about 445.9420031565.

The spelling of 88681931 in words is "eighty-eight million, six hundred eighty-one thousand, nine hundred thirty-one".