86831634 has 16 divisors (see below), whose sum is σ = 182803680. Its totient is φ = 27420480.

The previous prime is 86831629. The next prime is 86831669. The reversal of 86831634 is 43613868.

It is a junction number, because it is equal to n+sod(n) for n = 86831592 and 86831601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380727 + ... + 380954.

It is an arithmetic number, because the mean of its divisors is an integer number (11425230).

Almost surely, 2^86831634 is an apocalyptic number.

86831634 is an abundant number, since it is smaller than the sum of its proper divisors (95972046).

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

86831634 is a wasteful number, since it uses less digits than its factorization.

86831634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761705.

The product of its digits is 82944, while the sum is 39.

The square root of 86831634 is about 9318.3493173416. The cubic root of 86831634 is about 442.8187393585.

The spelling of 86831634 in words is "eighty-six million, eight hundred thirty-one thousand, six hundred thirty-four".