86639267 has 12 divisors (see below), whose sum is σ = 102558960. Its totient is φ = 72702960.

The previous prime is 86639263. The next prime is 86639279. The reversal of 86639267 is 76293668.

It is not a de Polignac number, because 86639267 - 2² = 86639263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86639263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25967 + ... + 29112.

It is an arithmetic number, because the mean of its divisors is an integer number (8546580).

Almost surely, 2^86639267 is an apocalyptic number.

86639267 is a deficient number, since it is larger than the sum of its proper divisors (15919693).

86639267 is a wasteful number, since it uses less digits than its factorization.

86639267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55114 (or 55103 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 86639267 is about 9308.0216480195. The cubic root of 86639267 is about 442.4914903616.

The spelling of 86639267 in words is "eighty-six million, six hundred thirty-nine thousand, two hundred sixty-seven".