85179233 has 2 divisors, whose sum is σ = 85179234. Its totient is φ = 85179232.

The previous prime is 85179221. The next prime is 85179239. The reversal of 85179233 is 33297158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 6466849 = 8872^2 + 2543^2 .

It is a cyclic number.

It is not a de Polignac number, because 85179233 - 2¹² = 85175137 is a prime.

It is not a weakly prime, because it can be changed into another prime (85179239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42589616 + 42589617.

It is an arithmetic number, because the mean of its divisors is an integer number (42589617).

Almost surely, 2^85179233 is an apocalyptic number.

It is an amenable number.

85179233 is a deficient number, since it is larger than the sum of its proper divisors (1).

85179233 is an equidigital number, since it uses as much as digits as its factorization.

85179233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 85179233 is about 9229.2596127750. The cubic root of 85179233 is about 439.9917922023.

The spelling of 85179233 in words is "eighty-five million, one hundred seventy-nine thousand, two hundred thirty-three".