853888369 has 2 divisors, whose sum is σ = 853888370. Its totient is φ = 853888368.

The previous prime is 853888351. The next prime is 853888379. The reversal of 853888369 is 963888358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 828000625 + 25887744 = 28775^2 + 5088^2 .

It is a cyclic number.

It is not a de Polignac number, because 853888369 - 2²¹ = 851791217 is a prime.

It is a super-2 number, since 2×853888369² = 1458250693426960322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (853888349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426944184 + 426944185.

It is an arithmetic number, because the mean of its divisors is an integer number (426944185).

Almost surely, 2^853888369 is an apocalyptic number.

It is an amenable number.

853888369 is a deficient number, since it is larger than the sum of its proper divisors (1).

853888369 is an equidigital number, since it uses as much as digits as its factorization.

853888369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 58.

The square root of 853888369 is about 29221.3683628950. The cubic root of 853888369 is about 948.7104827362.

The spelling of 853888369 in words is "eight hundred fifty-three million, eight hundred eighty-eight thousand, three hundred sixty-nine".