84439520 has 48 divisors (see below), whose sum is σ = 217628208. Its totient is φ = 30704640.

The previous prime is 84439507. The next prime is 84439583. The reversal of 84439520 is 2593448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22229 + ... + 25748.

It is an arithmetic number, because the mean of its divisors is an integer number (4533921).

Almost surely, 2^84439520 is an apocalyptic number.

84439520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84439520 is an abundant number, since it is smaller than the sum of its proper divisors (133188688).

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

84439520 is a wasteful number, since it uses less digits than its factorization.

84439520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48003 (or 47995 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 84439520 is about 9189.0978882587. The cubic root of 84439520 is about 438.7144293584.

The spelling of 84439520 in words is "eighty-four million, four hundred thirty-nine thousand, five hundred twenty".