84672915 has 8 divisors (see below), whose sum is σ = 135476688. Its totient is φ = 45158880.

The previous prime is 84672893. The next prime is 84672923. The reversal of 84672915 is 51927648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84672915 - 2⁵ = 84672883 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2822416 + ... + 2822445.

It is an arithmetic number, because the mean of its divisors is an integer number (16934586).

Almost surely, 2^84672915 is an apocalyptic number.

84672915 is a deficient number, since it is larger than the sum of its proper divisors (50803773).

84672915 is a wasteful number, since it uses less digits than its factorization.

84672915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644869.

The product of its digits is 120960, while the sum is 42.

The square root of 84672915 is about 9201.7886848156. The cubic root of 84672915 is about 439.1182669548.

The spelling of 84672915 in words is "eighty-four million, six hundred seventy-two thousand, nine hundred fifteen".