86723667 has 6 divisors (see below), whose sum is σ = 125267532. Its totient is φ = 57815772.

The previous prime is 86723653. The next prime is 86723683. The reversal of 86723667 is 76632768.

It is not a de Polignac number, because 86723667 - 2⁸ = 86723411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86723617) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4817973 + ... + 4817990.

It is an arithmetic number, because the mean of its divisors is an integer number (20877922).

Almost surely, 2^86723667 is an apocalyptic number.

86723667 is a deficient number, since it is larger than the sum of its proper divisors (38543865).

86723667 is a wasteful number, since it uses less digits than its factorization.

86723667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9635969 (or 9635966 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 86723667 is about 9312.5542682983. The cubic root of 86723667 is about 442.6351287011.

The spelling of 86723667 in words is "eighty-six million, seven hundred twenty-three thousand, six hundred sixty-seven".