84402 has 20 divisors (see below), whose sum is σ = 189486. Its totient is φ = 28080.

The previous prime is 84401. The next prime is 84407. The reversal of 84402 is 20448.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 77841 + 6561 = 279^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84402.

It is not an unprimeable number, because it can be changed into a prime (84401) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 99 + ... + 422.

2⁸⁴⁴⁰² is an apocalyptic number.

84402 is an abundant number, since it is smaller than the sum of its proper divisors (105084).

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

84402 is a wasteful number, since it uses less digits than its factorization.

84402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 84402 is about 290.5202230482. The cubic root of 84402 is about 43.8649440026.

The spelling of 84402 in words is "eighty-four thousand, four hundred two".