85203279 has 16 divisors (see below), whose sum is σ = 144259840. Its totient is φ = 48687480.

The previous prime is 85203263. The next prime is 85203281. The reversal of 85203279 is 97230258.

It is a happy number.

It is not a de Polignac number, because 85203279 - 2⁴ = 85203263 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 (85203259) 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, 225217 + ... + 225594.

It is an arithmetic number, because the mean of its divisors is an integer number (9016240).

Almost surely, 2^85203279 is an apocalyptic number.

85203279 is a deficient number, since it is larger than the sum of its proper divisors (59056561).

85203279 is a wasteful number, since it uses less digits than its factorization.

85203279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450827 (or 450821 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 85203279 is about 9230.5622255635. The cubic root of 85203279 is about 440.0331913667.

The spelling of 85203279 in words is "eighty-five million, two hundred three thousand, two hundred seventy-nine".