85323913 has 2 divisors, whose sum is σ = 85323914. Its totient is φ = 85323912.

The previous prime is 85323893. The next prime is 85323923. The reversal of 85323913 is 31932358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46348864 + 38975049 = 6808^2 + 6243^2 .

It is a cyclic number.

It is not a de Polignac number, because 85323913 - 2⁹ = 85323401 is a prime.

It is not a weakly prime, because it can be changed into another prime (85323923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42661956 + 42661957.

It is an arithmetic number, because the mean of its divisors is an integer number (42661957).

Almost surely, 2^85323913 is an apocalyptic number.

It is an amenable number.

85323913 is a deficient number, since it is larger than the sum of its proper divisors (1).

85323913 is an equidigital number, since it uses as much as digits as its factorization.

85323913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 85323913 is about 9237.0944024623. The cubic root of 85323913 is about 440.2407652693.

The spelling of 85323913 in words is "eighty-five million, three hundred twenty-three thousand, nine hundred thirteen".