85195837 has 2 divisors, whose sum is σ = 85195838. Its totient is φ = 85195836.

The previous prime is 85195813. The next prime is 85195853. The reversal of 85195837 is 73859158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66928761 + 18267076 = 8181^2 + 4274^2 .

It is a cyclic number.

It is not a de Polignac number, because 85195837 - 2¹⁵ = 85163069 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85195807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42597918 + 42597919.

It is an arithmetic number, because the mean of its divisors is an integer number (42597919).

Almost surely, 2^85195837 is an apocalyptic number.

It is an amenable number.

85195837 is a deficient number, since it is larger than the sum of its proper divisors (1).

85195837 is an equidigital number, since it uses as much as digits as its factorization.

85195837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 85195837 is about 9230.1590993872. The cubic root of 85195837 is about 440.0203795657.

The spelling of 85195837 in words is "eighty-five million, one hundred ninety-five thousand, eight hundred thirty-seven".