85890599 has 4 divisors (see below), whose sum is σ = 86340480. Its totient is φ = 85440720.

The previous prime is 85890593. The next prime is 85890611. The reversal of 85890599 is 99509858.

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 85890599 - 2¹² = 85886503 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 85890599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85890593) 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, 224654 + ... + 225035.

It is an arithmetic number, because the mean of its divisors is an integer number (21585120).

Almost surely, 2^85890599 is an apocalyptic number.

85890599 is a deficient number, since it is larger than the sum of its proper divisors (449881).

85890599 is a wasteful number, since it uses less digits than its factorization.

85890599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449880.

The product of its (nonzero) digits is 1166400, while the sum is 53.

The square root of 85890599 is about 9267.7181118116. The cubic root of 85890599 is about 441.2132476137.

The spelling of 85890599 in words is "eighty-five million, eight hundred ninety thousand, five hundred ninety-nine".