85399185 has 16 divisors (see below), whose sum is σ = 137850624. Its totient is φ = 45142272.

The previous prime is 85399183. The next prime is 85399189. The reversal of 85399185 is 58199358.

It is not a de Polignac number, because 85399185 - 2¹ = 85399183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85399183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23497 + ... + 26886.

It is an arithmetic number, because the mean of its divisors is an integer number (8615664).

Almost surely, 2^85399185 is an apocalyptic number.

It is an amenable number.

85399185 is a deficient number, since it is larger than the sum of its proper divisors (52451439).

85399185 is a wasteful number, since it uses less digits than its factorization.

85399185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50504.

The product of its digits is 388800, while the sum is 48.

The square root of 85399185 is about 9241.1679456657. The cubic root of 85399185 is about 440.3701860528.

The spelling of 85399185 in words is "eighty-five million, three hundred ninety-nine thousand, one hundred eighty-five".