84590399 has 8 divisors (see below), whose sum is σ = 87023040. Its totient is φ = 82165536.

The previous prime is 84590377. The next prime is 84590411. The reversal of 84590399 is 99309548.

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 84590399 - 2²⁴ = 67813183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84590309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25562 + ... + 28680.

It is an arithmetic number, because the mean of its divisors is an integer number (10877880).

Almost surely, 2^84590399 is an apocalyptic number.

84590399 is a deficient number, since it is larger than the sum of its proper divisors (2432641).

84590399 is a wasteful number, since it uses less digits than its factorization.

84590399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 84590399 is about 9197.3038984259. The cubic root of 84590399 is about 438.9755764627.

The spelling of 84590399 in words is "eighty-four million, five hundred ninety thousand, three hundred ninety-nine".