86407215 has 16 divisors (see below), whose sum is σ = 139596288. Its totient is φ = 45635616.

The previous prime is 86407201. The next prime is 86407229. The reversal of 86407215 is 51270468.

It is an interprime number because it is at equal distance from previous prime (86407201) and next prime (86407229).

It is not a de Polignac number, because 86407215 - 2⁶ = 86407151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26419 + ... + 29508.

It is an arithmetic number, because the mean of its divisors is an integer number (8724768).

Almost surely, 2^86407215 is an apocalyptic number.

86407215 is a deficient number, since it is larger than the sum of its proper divisors (53189073).

86407215 is a wasteful number, since it uses less digits than its factorization.

86407215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56038.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 86407215 is about 9295.5481280019. The cubic root of 86407215 is about 442.0960851829.

The spelling of 86407215 in words is "eighty-six million, four hundred seven thousand, two hundred fifteen".