85995913 has 2 divisors, whose sum is σ = 85995914. Its totient is φ = 85995912.

The previous prime is 85995883. The next prime is 85995941. The reversal of 85995913 is 31959958.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51796809 + 34199104 = 7197^2 + 5848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85995913 is a prime.

It is not a weakly prime, because it can be changed into another prime (85993913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42997956 + 42997957.

It is an arithmetic number, because the mean of its divisors is an integer number (42997957).

Almost surely, 2^85995913 is an apocalyptic number.

It is an amenable number.

85995913 is a deficient number, since it is larger than the sum of its proper divisors (1).

85995913 is an equidigital number, since it uses as much as digits as its factorization.

85995913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 49.

The square root of 85995913 is about 9273.3981366056. The cubic root of 85995913 is about 441.3935038705.

The spelling of 85995913 in words is "eighty-five million, nine hundred ninety-five thousand, nine hundred thirteen".