86668567 has 8 divisors (see below), whose sum is σ = 92332656. Its totient is φ = 81067392.

The previous prime is 86668537. The next prime is 86668579. The reversal of 86668567 is 76586668.

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 86668567 - 2¹¹ = 86666519 is a prime.

It is a super-2 number, since 2×86668567² = 15022881011666978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86668537) 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, 12868 + ... + 18409.

It is an arithmetic number, because the mean of its divisors is an integer number (11541582).

Almost surely, 2^86668567 is an apocalyptic number.

86668567 is a deficient number, since it is larger than the sum of its proper divisors (5664089).

86668567 is a wasteful number, since it uses less digits than its factorization.

86668567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31457.

The product of its digits is 2903040, while the sum is 52.

The square root of 86668567 is about 9309.5954262256. The cubic root of 86668567 is about 442.5413658968.

The spelling of 86668567 in words is "eighty-six million, six hundred sixty-eight thousand, five hundred sixty-seven".