86051215 has 4 divisors (see below), whose sum is σ = 103261464. Its totient is φ = 68840968.

The previous prime is 86051197. The next prime is 86051221. The reversal of 86051215 is 51215068.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86051215 - 2¹⁷ = 85920143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8605117 + ... + 8605126.

It is an arithmetic number, because the mean of its divisors is an integer number (25815366).

Almost surely, 2^86051215 is an apocalyptic number.

86051215 is a deficient number, since it is larger than the sum of its proper divisors (17210249).

86051215 is a wasteful number, since it uses less digits than its factorization.

86051215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210248.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 86051215 is about 9276.3794122492. The cubic root of 86051215 is about 441.4881002766.

The spelling of 86051215 in words is "eighty-six million, fifty-one thousand, two hundred fifteen".