84398454 has 48 divisors (see below), whose sum is σ = 218080512. Its totient is φ = 23064624.

The previous prime is 84398449. The next prime is 84398471. The reversal of 84398454 is 45489348.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11664 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (4543344).

Almost surely, 2^84398454 is an apocalyptic number.

84398454 is an abundant number, since it is smaller than the sum of its proper divisors (133682058).

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

84398454 is a wasteful number, since it uses less digits than its factorization.

84398454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29161 (or 29158 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 84398454 is about 9186.8631207828. The cubic root of 84398454 is about 438.6432969148.

The spelling of 84398454 in words is "eighty-four million, three hundred ninety-eight thousand, four hundred fifty-four".