84755620 has 12 divisors (see below), whose sum is σ = 177986844. Its totient is φ = 33902240.

The previous prime is 84755579. The next prime is 84755669. The reversal of 84755620 is 2655748.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 54878464 = 5466^2 + 7408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84755620.

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, 2118871 + ... + 2118910.

It is an arithmetic number, because the mean of its divisors is an integer number (14832237).

Almost surely, 2^84755620 is an apocalyptic number.

It is an amenable number.

84755620 is an abundant number, since it is smaller than the sum of its proper divisors (93231224).

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

84755620 is a wasteful number, since it uses less digits than its factorization.

84755620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237790 (or 4237788 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 84755620 is about 9206.2815512019. The cubic root of 84755620 is about 439.2611912822.

The spelling of 84755620 in words is "eighty-four million, seven hundred fifty-five thousand, six hundred twenty".