86686242 has 16 divisors (see below), whose sum is σ = 175056960. Its totient is φ = 28614672.

The previous prime is 86686219. The next prime is 86686253. The reversal of 86686242 is 24268668.

It is a junction number, because it is equal to n+sod(n) for n = 86686194 and 86686203.

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, 69517 + ... + 70752.

It is an arithmetic number, because the mean of its divisors is an integer number (10941060).

Almost surely, 2^86686242 is an apocalyptic number.

86686242 is an abundant number, since it is smaller than the sum of its proper divisors (88370718).

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

86686242 is a wasteful number, since it uses less digits than its factorization.

86686242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140377.

The product of its digits is 221184, while the sum is 42.

The square root of 86686242 is about 9310.5446672040. The cubic root of 86686242 is about 442.5714474948.

The spelling of 86686242 in words is "eighty-six million, six hundred eighty-six thousand, two hundred forty-two".