84519956 has 6 divisors (see below), whose sum is σ = 147909930. Its totient is φ = 42259976.

The previous prime is 84519913. The next prime is 84519977. The reversal of 84519956 is 65991548.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61152400 + 23367556 = 7820^2 + 4834^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 84519956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10564991 + ... + 10564998.

It is an arithmetic number, because the mean of its divisors is an integer number (24651655).

Almost surely, 2^84519956 is an apocalyptic number.

It is an amenable number.

84519956 is a deficient number, since it is larger than the sum of its proper divisors (63389974).

84519956 is a wasteful number, since it uses less digits than its factorization.

84519956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21129993 (or 21129991 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 84519956 is about 9193.4735546473. The cubic root of 84519956 is about 438.8536897216.

The spelling of 84519956 in words is "eighty-four million, five hundred nineteen thousand, nine hundred fifty-six".