85775313 has 16 divisors (see below), whose sum is σ = 124903296. Its totient is φ = 52039680.

The previous prime is 85775311. The next prime is 85775317. The reversal of 85775313 is 31357758.

It is not a de Polignac number, because 85775313 - 2¹ = 85775311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (85775311) 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, 12720 + ... + 18257.

It is an arithmetic number, because the mean of its divisors is an integer number (7806456).

Almost surely, 2^85775313 is an apocalyptic number.

It is an amenable number.

85775313 is a deficient number, since it is larger than the sum of its proper divisors (39127983).

85775313 is a wasteful number, since it uses less digits than its factorization.

85775313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31064.

The product of its digits is 88200, while the sum is 39.

The square root of 85775313 is about 9261.4962614040. The cubic root of 85775313 is about 441.0157541896.

The spelling of 85775313 in words is "eighty-five million, seven hundred seventy-five thousand, three hundred thirteen".