86216590 has 16 divisors (see below), whose sum is σ = 155566080. Its totient is φ = 34403040.

The previous prime is 86216579. The next prime is 86216593. The reversal of 86216590 is 9561268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86216593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6030 + ... + 14449.

It is an arithmetic number, because the mean of its divisors is an integer number (9722880).

Almost surely, 2^86216590 is an apocalyptic number.

86216590 is a deficient number, since it is larger than the sum of its proper divisors (69349490).

86216590 is a wasteful number, since it uses less digits than its factorization.

86216590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20907.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 86216590 is about 9285.2889023444. The cubic root of 86216590 is about 441.7707396058.

The spelling of 86216590 in words is "eighty-six million, two hundred sixteen thousand, five hundred ninety".