86205238 has 16 divisors (see below), whose sum is σ = 150925824. Its totient is φ = 36158760.

The previous prime is 86205221. The next prime is 86205241. The reversal of 86205238 is 83250268.

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, 64848 + ... + 66163.

It is an arithmetic number, because the mean of its divisors is an integer number (9432864).

Almost surely, 2^86205238 is an apocalyptic number.

86205238 is a deficient number, since it is larger than the sum of its proper divisors (64720586).

86205238 is a wasteful number, since it uses less digits than its factorization.

86205238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131067.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 86205238 is about 9284.6775926792. The cubic root of 86205238 is about 441.7513496734.

The spelling of 86205238 in words is "eighty-six million, two hundred five thousand, two hundred thirty-eight".