84956420 has 12 divisors (see below), whose sum is σ = 178408524. Its totient is φ = 33982560.

The previous prime is 84956419. The next prime is 84956437. The reversal of 84956420 is 2465948.

It can be written as a sum of positive squares in 2 ways, for example, as 67634176 + 17322244 = 8224^2 + 4162^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123891 + ... + 2123930.

It is an arithmetic number, because the mean of its divisors is an integer number (14867377).

Almost surely, 2^84956420 is an apocalyptic number.

It is an amenable number.

84956420 is an abundant number, since it is smaller than the sum of its proper divisors (93452104).

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

84956420 is a wasteful number, since it uses less digits than its factorization.

84956420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247830 (or 4247828 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 84956420 is about 9217.1806969376. The cubic root of 84956420 is about 439.6078116889.

The spelling of 84956420 in words is "eighty-four million, nine hundred fifty-six thousand, four hundred twenty".