86406657 has 8 divisors (see below), whose sum is σ = 115620000. Its totient is φ = 57398880.

The previous prime is 86406647. The next prime is 86406659. The reversal of 86406657 is 75660468.

It is a happy number.

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

It is not a de Polignac number, because 86406657 - 2⁸ = 86406401 is a prime.

It is a super-2 number, since 2×86406657² = 14932220747831298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86406659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50407 + ... + 52092.

It is an arithmetic number, because the mean of its divisors is an integer number (14452500).

Almost surely, 2^86406657 is an apocalyptic number.

It is an amenable number.

86406657 is a deficient number, since it is larger than the sum of its proper divisors (29213343).

86406657 is a wasteful number, since it uses less digits than its factorization.

86406657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102783.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 86406657 is about 9295.5181135857. The cubic root of 86406657 is about 442.0951335257.

The spelling of 86406657 in words is "eighty-six million, four hundred six thousand, six hundred fifty-seven".