86378480 has 40 divisors (see below), whose sum is σ = 205111872. Its totient is φ = 33814784.

The previous prime is 86378437. The next prime is 86378489. The reversal of 86378480 is 8487368.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×86378480² = 14922483614220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86378489) 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, 7727 + ... + 15246.

Almost surely, 2^86378480 is an apocalyptic number.

86378480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86378480 is an abundant number, since it is smaller than the sum of its proper divisors (118733392).

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

86378480 is a wasteful number, since it uses less digits than its factorization.

86378480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23033 (or 23027 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 86378480 is about 9294.0023671183. The cubic root of 86378480 is about 442.0470729197.

Subtracting from 86378480 its sum of digits (44), we obtain a square (86378436 = 9294²).

The spelling of 86378480 in words is "eighty-six million, three hundred seventy-eight thousand, four hundred eighty".