86402590 has 8 divisors (see below), whose sum is σ = 155524680. Its totient is φ = 34561032.

The previous prime is 86402579. The next prime is 86402593. The reversal of 86402590 is 9520468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86402593) 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 3 ways as a sum of consecutive naturals, for example, 4320120 + ... + 4320139.

It is an arithmetic number, because the mean of its divisors is an integer number (19440585).

Almost surely, 2^86402590 is an apocalyptic number.

86402590 is a deficient number, since it is larger than the sum of its proper divisors (69122090).

86402590 is a wasteful number, since it uses less digits than its factorization.

86402590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640266.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 86402590 is about 9295.2993496713. The cubic root of 86402590 is about 442.0881972194.

The spelling of 86402590 in words is "eighty-six million, four hundred two thousand, five hundred ninety".