84867872 has 24 divisors (see below), whose sum is σ = 167587056. Its totient is φ = 42306112.

The previous prime is 84867847. The next prime is 84867911. The reversal of 84867872 is 27876848.

It is a self number, because there is not a number n which added to its sum of digits gives 84867872.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7283 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (6982794).

Almost surely, 2^84867872 is an apocalyptic number.

It is an amenable number.

84867872 is a deficient number, since it is larger than the sum of its proper divisors (82719184).

84867872 is a wasteful number, since it uses less digits than its factorization.

84867872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000 (or 7992 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 50.

The square root of 84867872 is about 9212.3760235891. The cubic root of 84867872 is about 439.4550277700.

The spelling of 84867872 in words is "eighty-four million, eight hundred sixty-seven thousand, eight hundred seventy-two".