84855402 has 12 divisors (see below), whose sum is σ = 183853410. Its totient is φ = 28285128.

The previous prime is 84855389. The next prime is 84855403. The reversal of 84855402 is 20455848.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 28740321 = 7491^2 + 5361^2 .

It is not an unprimeable number, because it can be changed into a prime (84855403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2357077 + ... + 2357112.

Almost surely, 2^84855402 is an apocalyptic number.

84855402 is an abundant number, since it is smaller than the sum of its proper divisors (98998008).

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

84855402 is a wasteful number, since it uses less digits than its factorization.

84855402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714197 (or 4714194 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 84855402 is about 9211.6991917887. The cubic root of 84855402 is about 439.4335030458.

The spelling of 84855402 in words is "eighty-four million, eight hundred fifty-five thousand, four hundred two".