84475239 has 8 divisors (see below), whose sum is σ = 113325312. Its totient is φ = 55971000.

The previous prime is 84475199. The next prime is 84475247. The reversal of 84475239 is 93257448.

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

It is not a de Polignac number, because 84475239 - 2⁹ = 84474727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84475239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84475249) 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, 85887 + ... + 86864.

It is an arithmetic number, because the mean of its divisors is an integer number (14165664).

Almost surely, 2^84475239 is an apocalyptic number.

84475239 is a deficient number, since it is larger than the sum of its proper divisors (28850073).

84475239 is a wasteful number, since it uses less digits than its factorization.

84475239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172917.

The product of its digits is 241920, while the sum is 42.

The square root of 84475239 is about 9191.0412358992. The cubic root of 84475239 is about 438.7762812481.

The spelling of 84475239 in words is "eighty-four million, four hundred seventy-five thousand, two hundred thirty-nine".