86621304 has 128 divisors (see below), whose sum is σ = 284313600. Its totient is φ = 21306240.

The previous prime is 86621303. The next prime is 86621309. The reversal of 86621304 is 40312668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86621303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33879 + ... + 36345.

It is an arithmetic number, because the mean of its divisors is an integer number (2221200).

Almost surely, 2^86621304 is an apocalyptic number.

86621304 is a gapful number since it is divisible by the number (84) 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 86621304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142156800).

86621304 is an abundant number, since it is smaller than the sum of its proper divisors (197692296).

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

86621304 is a wasteful number, since it uses less digits than its factorization.

86621304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2509 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 86621304 is about 9307.0566775968. The cubic root of 86621304 is about 442.4609075235.

The spelling of 86621304 in words is "eighty-six million, six hundred twenty-one thousand, three hundred four".