84681772 has 12 divisors (see below), whose sum is σ = 169363600. Its totient is φ = 36292176.

The previous prime is 84681713. The next prime is 84681781. The reversal of 84681772 is 27718648.

84681772 is an admirable number.

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, 1512147 + ... + 1512202.

Almost surely, 2^84681772 is an apocalyptic number.

It is an amenable number.

84681772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

84681772 is a wasteful number, since it uses less digits than its factorization.

84681772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024360 (or 3024358 counting only the distinct ones).

The product of its digits is 150528, while the sum is 43.

The square root of 84681772 is about 9202.2699373578. The cubic root of 84681772 is about 439.1335773796.

The spelling of 84681772 in words is "eighty-four million, six hundred eighty-one thousand, seven hundred seventy-two".