85057793 has 2 divisors, whose sum is σ = 85057794. Its totient is φ = 85057792.

The previous prime is 85057781. The next prime is 85057807. The reversal of 85057793 is 39775058.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60575089 + 24482704 = 7783^2 + 4948^2 .

It is a cyclic number.

It is not a de Polignac number, because 85057793 - 2⁸ = 85057537 is a prime.

It is not a weakly prime, because it can be changed into another prime (85057723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42528896 + 42528897.

It is an arithmetic number, because the mean of its divisors is an integer number (42528897).

Almost surely, 2^85057793 is an apocalyptic number.

It is an amenable number.

85057793 is a deficient number, since it is larger than the sum of its proper divisors (1).

85057793 is an equidigital number, since it uses as much as digits as its factorization.

85057793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 85057793 is about 9222.6781902005. The cubic root of 85057793 is about 439.7825940427.

The spelling of 85057793 in words is "eighty-five million, fifty-seven thousand, seven hundred ninety-three".