85900319 has 2 divisors, whose sum is σ = 85900320. Its totient is φ = 85900318.

The previous prime is 85900307. The next prime is 85900327. The reversal of 85900319 is 91300958.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85900319 is a prime.

It is a super-2 number, since 2×85900319² = 14757729608603522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_4993037 and since 85900319 and 4993037 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85900019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42950159 + 42950160.

It is an arithmetic number, because the mean of its divisors is an integer number (42950160).

Almost surely, 2^85900319 is an apocalyptic number.

85900319 is a deficient number, since it is larger than the sum of its proper divisors (1).

85900319 is an equidigital number, since it uses as much as digits as its factorization.

85900319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 85900319 is about 9268.2424979065. The cubic root of 85900319 is about 441.2298906109.

The spelling of 85900319 in words is "eighty-five million, nine hundred thousand, three hundred nineteen".