86786406 has 48 divisors (see below), whose sum is σ = 224250624. Its totient is φ = 23717232.

The previous prime is 86786363. The next prime is 86786407. The reversal of 86786406 is 60468768.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86786407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12076 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (4671888).

Almost surely, 2^86786406 is an apocalyptic number.

86786406 is an abundant number, since it is smaller than the sum of its proper divisors (137464218).

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

86786406 is a wasteful number, since it uses less digits than its factorization.

86786406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29985 (or 29982 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 86786406 is about 9315.9221765749. The cubic root of 86786406 is about 442.7418423287.

The spelling of 86786406 in words is "eighty-six million, seven hundred eighty-six thousand, four hundred six".