84875579 has 4 divisors (see below), whose sum is σ = 85383984. Its totient is φ = 84367176.

The previous prime is 84875569. The next prime is 84875587. The reversal of 84875579 is 97557848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84875579 - 2⁴ = 84875563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84875579.

It is not an unprimeable number, because it can be changed into a prime (84875519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253952 + ... + 254285.

It is an arithmetic number, because the mean of its divisors is an integer number (21345996).

Almost surely, 2^84875579 is an apocalyptic number.

84875579 is a deficient number, since it is larger than the sum of its proper divisors (508405).

84875579 is a wasteful number, since it uses less digits than its factorization.

84875579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508404.

The product of its digits is 2822400, while the sum is 53.

The square root of 84875579 is about 9212.7943100886. The cubic root of 84875579 is about 439.4683299274.

The spelling of 84875579 in words is "eighty-four million, eight hundred seventy-five thousand, five hundred seventy-nine".