86304861 has 6 divisors (see below), whose sum is σ = 124662590. Its totient is φ = 57536568.

The previous prime is 86304857. The next prime is 86304863. The reversal of 86304861 is 16840368.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86211225 + 93636 = 9285^2 + 306^2 .

It is not a de Polignac number, because 86304861 - 2² = 86304857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86304863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4794706 + ... + 4794723.

Almost surely, 2^86304861 is an apocalyptic number.

It is an amenable number.

86304861 is a deficient number, since it is larger than the sum of its proper divisors (38357729).

86304861 is a wasteful number, since it uses less digits than its factorization.

86304861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9589435 (or 9589432 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 86304861 is about 9290.0409579291. The cubic root of 86304861 is about 441.9214540034.

The spelling of 86304861 in words is "eighty-six million, three hundred four thousand, eight hundred sixty-one".