84218292 has 30 divisors (see below), whose sum is σ = 220164098. Its totient is φ = 28072656.

The previous prime is 84218273. The next prime is 84218333. The reversal of 84218292 is 29281248.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 41525136 = 6534^2 + 6444^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 129643 + ... + 130290.

Almost surely, 2^84218292 is an apocalyptic number.

It is an amenable number.

84218292 is an abundant number, since it is smaller than the sum of its proper divisors (135945806).

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

84218292 is a wasteful number, since it uses less digits than its factorization.

84218292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259949 (or 259938 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 84218292 is about 9177.0524679769. The cubic root of 84218292 is about 438.3309564689.

The spelling of 84218292 in words is "eighty-four million, two hundred eighteen thousand, two hundred ninety-two".