86402390 has 16 divisors (see below), whose sum is σ = 156265200. Its totient is φ = 34396320.

The previous prime is 86402389. The next prime is 86402401. The reversal of 86402390 is 9320468.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18365 + ... + 22584.

It is an arithmetic number, because the mean of its divisors is an integer number (9766575).

Almost surely, 2^86402390 is an apocalyptic number.

86402390 is a deficient number, since it is larger than the sum of its proper divisors (69862810).

86402390 is a wasteful number, since it uses less digits than its factorization.

86402390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41167.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 86402390 is about 9295.2885915393. The cubic root of 86402390 is about 442.0878561119.

The spelling of 86402390 in words is "eighty-six million, four hundred two thousand, three hundred ninety".