85117433 has 2 divisors, whose sum is σ = 85117434. Its totient is φ = 85117432.

The previous prime is 85117303. The next prime is 85117477. The reversal of 85117433 is 33471158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81775849 + 3341584 = 9043^2 + 1828^2 .

It is a cyclic number.

It is not a de Polignac number, because 85117433 - 2⁸ = 85117177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85117433.

It is not a weakly prime, because it can be changed into another prime (85117033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42558716 + 42558717.

It is an arithmetic number, because the mean of its divisors is an integer number (42558717).

Almost surely, 2^85117433 is an apocalyptic number.

It is an amenable number.

85117433 is a deficient number, since it is larger than the sum of its proper divisors (1).

85117433 is an equidigital number, since it uses as much as digits as its factorization.

85117433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 85117433 is about 9225.9109577320. The cubic root of 85117433 is about 439.8853575291.

The spelling of 85117433 in words is "eighty-five million, one hundred seventeen thousand, four hundred thirty-three".