86805572 has 12 divisors (see below), whose sum is σ = 173611200. Its totient is φ = 37202376.

The previous prime is 86805571. The next prime is 86805599. The reversal of 86805572 is 27550868.

86805572 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (86805571) 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, 1550072 + ... + 1550127.

It is an arithmetic number, because the mean of its divisors is an integer number (14467600).

Almost surely, 2^86805572 is an apocalyptic number.

It is an amenable number.

86805572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

86805572 is a wasteful number, since it uses less digits than its factorization.

86805572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100210 (or 3100208 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 86805572 is about 9316.9507887506. The cubic root of 86805572 is about 442.7744317858.

The spelling of 86805572 in words is "eighty-six million, eight hundred five thousand, five hundred seventy-two".