84063872 has 16 divisors (see below), whose sum is σ = 167471250. Its totient is φ = 42031872.

The previous prime is 84063857. The next prime is 84063887. The reversal of 84063872 is 27836048.

It is an interprime number because it is at equal distance from previous prime (84063857) and next prime (84063887).

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 12559936 = 8456^2 + 3544^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328247 + ... + 328502.

Almost surely, 2^84063872 is an apocalyptic number.

It is an amenable number.

84063872 is a deficient number, since it is larger than the sum of its proper divisors (83407378).

84063872 is an equidigital number, since it uses as much as digits as its factorization.

84063872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656763 (or 656751 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 84063872 is about 9168.6352310472. The cubic root of 84063872 is about 438.0628892969.

The spelling of 84063872 in words is "eighty-four million, sixty-three thousand, eight hundred seventy-two".