85198759 has 2 divisors, whose sum is σ = 85198760. Its totient is φ = 85198758.

The previous prime is 85198727. The next prime is 85198783. The reversal of 85198759 is 95789158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85198759 - 2⁵ = 85198727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85198709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42599379 + 42599380.

It is an arithmetic number, because the mean of its divisors is an integer number (42599380).

Almost surely, 2^85198759 is an apocalyptic number.

85198759 is a deficient number, since it is larger than the sum of its proper divisors (1).

85198759 is an equidigital number, since it uses as much as digits as its factorization.

85198759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 52.

The square root of 85198759 is about 9230.3173834923. The cubic root of 85198759 is about 440.0254100339.

The spelling of 85198759 in words is "eighty-five million, one hundred ninety-eight thousand, seven hundred fifty-nine".