86408658 has 54 divisors (see below), whose sum is σ = 218483109. Its totient is φ = 24609312.

The previous prime is 86408617. The next prime is 86408659. The reversal of 86408658 is 85680468.

It can be written as a sum of positive squares in 2 ways, for example, as 50083929 + 36324729 = 7077^2 + 6027^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=6573.

It is not an unprimeable number, because it can be changed into a prime (86408659) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 275910 + ... + 276222.

Almost surely, 2^86408658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86408658

86408658 is an abundant number, since it is smaller than the sum of its proper divisors (132074451).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86408658 is a wasteful number, since it uses less digits than its factorization.

86408658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 86408658 is about 9295.6257454784. The cubic root of 86408658 is about 442.0985461699.

The spelling of 86408658 in words is "eighty-six million, four hundred eight thousand, six hundred fifty-eight".