86659408 has 40 divisors (see below), whose sum is σ = 185925600. Its totient is φ = 38797440.

The previous prime is 86659373. The next prime is 86659409. The reversal of 86659408 is 80495668.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86659409) 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, 8118 + ... + 15466.

It is an arithmetic number, because the mean of its divisors is an integer number (4648140).

Almost surely, 2^86659408 is an apocalyptic number.

86659408 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86659408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92962800).

86659408 is an abundant number, since it is smaller than the sum of its proper divisors (99266192).

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

86659408 is a wasteful number, since it uses less digits than its factorization.

86659408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7435 (or 7429 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 86659408 is about 9309.1035014119. The cubic root of 86659408 is about 442.5257763188.

The spelling of 86659408 in words is "eighty-six million, six hundred fifty-nine thousand, four hundred eight".