86402079 has 16 divisors (see below), whose sum is σ = 128285440. Its totient is φ = 57474360.

The previous prime is 86402059. The next prime is 86402083. The reversal of 86402079 is 97020468.

86402079 is a `hidden beast` number, since 8 + 640 + 2 + 0 + 7 + 9 = 666.

It is not a de Polignac number, because 86402079 - 2⁷ = 86401951 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 (86402059) 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 15 ways as a sum of consecutive naturals, for example, 9864 + ... + 16434.

It is an arithmetic number, because the mean of its divisors is an integer number (8017840).

Almost surely, 2^86402079 is an apocalyptic number.

86402079 is a deficient number, since it is larger than the sum of its proper divisors (41883361).

86402079 is a wasteful number, since it uses less digits than its factorization.

86402079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7067 (or 7061 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 86402079 is about 9295.2718626192. The cubic root of 86402079 is about 442.0873256887.

The spelling of 86402079 in words is "eighty-six million, four hundred two thousand, seventy-nine".