86831616 has 40 divisors (see below), whose sum is σ = 231328944. Its totient is φ = 28943360.

The previous prime is 86831611. The next prime is 86831617. The reversal of 86831616 is 61613868.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (86831611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26730 + ... + 29801.

Almost surely, 2^86831616 is an apocalyptic number.

It is an amenable number.

86831616 is an abundant number, since it is smaller than the sum of its proper divisors (144497328).

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

86831616 is an equidigital number, since it uses as much as digits as its factorization.

86831616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56552 (or 56536 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 86831616 is about 9318.3483515052. The cubic root of 86831616 is about 442.8187087601.

The spelling of 86831616 in words is "eighty-six million, eight hundred thirty-one thousand, six hundred sixteen".