85179293 has 4 divisors (see below), whose sum is σ = 88116540. Its totient is φ = 82242048.

The previous prime is 85179271. The next prime is 85179313. The reversal of 85179293 is 39297158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 53392249 = 5638^2 + 7307^2 .

It is a cyclic number.

It is not a de Polignac number, because 85179293 - 2⁸ = 85179037 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 (85179203) 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, 1468580 + ... + 1468637.

It is an arithmetic number, because the mean of its divisors is an integer number (22029135).

Almost surely, 2^85179293 is an apocalyptic number.

It is an amenable number.

85179293 is a deficient number, since it is larger than the sum of its proper divisors (2937247).

85179293 is a wasteful number, since it uses less digits than its factorization.

85179293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937246.

The product of its digits is 136080, while the sum is 44.

The square root of 85179293 is about 9229.2628633060. The cubic root of 85179293 is about 439.9918955119.

The spelling of 85179293 in words is "eighty-five million, one hundred seventy-nine thousand, two hundred ninety-three".