86404080 has 80 divisors (see below), whose sum is σ = 306123264. Its totient is φ = 19749120.

The previous prime is 86404061. The next prime is 86404093. The reversal of 86404080 is 8040468.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24036 + ... + 27395.

Almost surely, 2^86404080 is an apocalyptic number.

86404080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86404080 is an abundant number, since it is smaller than the sum of its proper divisors (219719184).

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

86404080 is a wasteful number, since it uses less digits than its factorization.

86404080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51454 (or 51448 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 86404080 is about 9295.3794973632. The cubic root of 86404080 is about 442.0907384535.

It can be divided in two parts, 8640 and 4080, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 86404080 in words is "eighty-six million, four hundred four thousand, eighty".