86635667 has 2 divisors, whose sum is σ = 86635668. Its totient is φ = 86635666.

The previous prime is 86635663. The next prime is 86635697. The reversal of 86635667 is 76653668.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86635667 - 2² = 86635663 is a prime.

It is not a weakly prime, because it can be changed into another prime (86635663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43317833 + 43317834.

It is an arithmetic number, because the mean of its divisors is an integer number (43317834).

Almost surely, 2^86635667 is an apocalyptic number.

86635667 is a deficient number, since it is larger than the sum of its proper divisors (1).

86635667 is an equidigital number, since it uses as much as digits as its factorization.

86635667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 47.

The square root of 86635667 is about 9307.8282644234. The cubic root of 86635667 is about 442.4853615339.

The spelling of 86635667 in words is "eighty-six million, six hundred thirty-five thousand, six hundred sixty-seven".