84375889 has 8 divisors (see below), whose sum is σ = 90939240. Its totient is φ = 77822976.

The previous prime is 84375883. The next prime is 84375901. The reversal of 84375889 is 98857348.

It can be written as a sum of positive squares in 4 ways, for example, as 11785489 + 72590400 = 3433^2 + 8520^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84375889 - 2³ = 84375881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84375881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25329 + ... + 28465.

It is an arithmetic number, because the mean of its divisors is an integer number (11367405).

Almost surely, 2^84375889 is an apocalyptic number.

It is an amenable number.

84375889 is a deficient number, since it is larger than the sum of its proper divisors (6563351).

84375889 is a wasteful number, since it uses less digits than its factorization.

84375889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219.

The product of its digits is 1935360, while the sum is 52.

The square root of 84375889 is about 9185.6349263401. The cubic root of 84375889 is about 438.6042011424.

It can be divided in two parts, 84375 and 889, that added together give a square (85264 = 292²).

The spelling of 84375889 in words is "eighty-four million, three hundred seventy-five thousand, eight hundred eighty-nine".