86215667 has 8 divisors (see below), whose sum is σ = 87830976. Its totient is φ = 84610152.

The previous prime is 86215663. The next prime is 86215691. The reversal of 86215667 is 76651268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86215667 - 2² = 86215663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86215663) 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, 16688 + ... + 21234.

It is an arithmetic number, because the mean of its divisors is an integer number (10978872).

Almost surely, 2^86215667 is an apocalyptic number.

86215667 is a deficient number, since it is larger than the sum of its proper divisors (1615309).

86215667 is a wasteful number, since it uses less digits than its factorization.

86215667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4897.

The product of its digits is 120960, while the sum is 41.

The square root of 86215667 is about 9285.2391999345. The cubic root of 86215667 is about 441.7691631271.

The spelling of 86215667 in words is "eighty-six million, two hundred fifteen thousand, six hundred sixty-seven".