853787797 has 2 divisors, whose sum is σ = 853787798. Its totient is φ = 853787796.

The previous prime is 853787791. The next prime is 853787827. The reversal of 853787797 is 797787358.

853787797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576432081 + 277355716 = 24009^2 + 16654^2 .

It is a cyclic number.

It is not a de Polignac number, because 853787797 - 2³ = 853787789 is a prime.

It is a super-2 number, since 2×853787797² = 1457907204612226418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853787791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426893898 + 426893899.

It is an arithmetic number, because the mean of its divisors is an integer number (426893899).

Almost surely, 2^853787797 is an apocalyptic number.

It is an amenable number.

853787797 is a deficient number, since it is larger than the sum of its proper divisors (1).

853787797 is an equidigital number, since it uses as much as digits as its factorization.

853787797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20744640, while the sum is 61.

The square root of 853787797 is about 29219.6474482496. The cubic root of 853787797 is about 948.6732345195.

The spelling of 853787797 in words is "eight hundred fifty-three million, seven hundred eighty-seven thousand, seven hundred ninety-seven".