84457888 has 48 divisors (see below), whose sum is σ = 180714240. Its totient is φ = 38707200.

The previous prime is 84457883. The next prime is 84457903. The reversal of 84457888 is 88875448.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (84457883) 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, 16608 + ... + 21088.

It is an arithmetic number, because the mean of its divisors is an integer number (3764880).

Almost surely, 2^84457888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84457888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90357120).

84457888 is an abundant number, since it is smaller than the sum of its proper divisors (96256352).

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

84457888 is a wasteful number, since it uses less digits than its factorization.

84457888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541 (or 4533 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 52.

The square root of 84457888 is about 9190.0972791369. The cubic root of 84457888 is about 438.7462380123.

The spelling of 84457888 in words is "eighty-four million, four hundred fifty-seven thousand, eight hundred eighty-eight".