85399299 has 16 divisors (see below), whose sum is σ = 132019200. Its totient is φ = 54457128.

The previous prime is 85399277. The next prime is 85399309. The reversal of 85399299 is 99299358.

It is not a de Polignac number, because 85399299 - 2⁵ = 85399267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85399199) 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, 68139 + ... + 69380.

It is an arithmetic number, because the mean of its divisors is an integer number (8251200).

Almost surely, 2^85399299 is an apocalyptic number.

85399299 is a deficient number, since it is larger than the sum of its proper divisors (46619901).

85399299 is a wasteful number, since it uses less digits than its factorization.

85399299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137551 (or 137545 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 85399299 is about 9241.1741137152. The cubic root of 85399299 is about 440.3703820039.

The spelling of 85399299 in words is "eighty-five million, three hundred ninety-nine thousand, two hundred ninety-nine".