84975819 has 8 divisors (see below), whose sum is σ = 113838912. Its totient is φ = 56381640.

The previous prime is 84975811. The next prime is 84975833. The reversal of 84975819 is 91857948.

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

It is not a de Polignac number, because 84975819 - 2³ = 84975811 is a prime.

It is a super-2 number, since 2×84975819² = 14441779629441522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84975811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66489 + ... + 67754.

It is an arithmetic number, because the mean of its divisors is an integer number (14229864).

Almost surely, 2^84975819 is an apocalyptic number.

84975819 is a deficient number, since it is larger than the sum of its proper divisors (28863093).

84975819 is a wasteful number, since it uses less digits than its factorization.

84975819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134457.

The product of its digits is 725760, while the sum is 51.

The square root of 84975819 is about 9218.2329651620. The cubic root of 84975819 is about 439.6412692464.

The spelling of 84975819 in words is "eighty-four million, nine hundred seventy-five thousand, eight hundred nineteen".