85929793 has 2 divisors, whose sum is σ = 85929794. Its totient is φ = 85929792.

The previous prime is 85929791. The next prime is 85929803. The reversal of 85929793 is 39792958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82573569 + 3356224 = 9087^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 85929793 - 2¹ = 85929791 is a prime.

Together with 85929791, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 85929793.

It is not a weakly prime, because it can be changed into another prime (85929791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42964896 + 42964897.

It is an arithmetic number, because the mean of its divisors is an integer number (42964897).

Almost surely, 2^85929793 is an apocalyptic number.

It is an amenable number.

85929793 is a deficient number, since it is larger than the sum of its proper divisors (1).

85929793 is an equidigital number, since it uses as much as digits as its factorization.

85929793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The square root of 85929793 is about 9269.8324148822. The cubic root of 85929793 is about 441.2803495725.

The spelling of 85929793 in words is "eighty-five million, nine hundred twenty-nine thousand, seven hundred ninety-three".