885261239 has 2 divisors, whose sum is σ = 885261240. Its totient is φ = 885261238.

The previous prime is 885261229. The next prime is 885261269. The reversal of 885261239 is 932162588.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-885261239 is a prime.

It is a super-2 number, since 2×885261239² = 1567374922551630242, which contains 22 as substring.

It is a Chen prime.

It is equal to p_45294479 and since 885261239 and 45294479 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 885261239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (885261229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442630619 + 442630620.

It is an arithmetic number, because the mean of its divisors is an integer number (442630620).

Almost surely, 2^885261239 is an apocalyptic number.

885261239 is a deficient number, since it is larger than the sum of its proper divisors (1).

885261239 is an equidigital number, since it uses as much as digits as its factorization.

885261239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 885261239 is about 29753.3399637755. The cubic root of 885261239 is about 960.1899360153.

The spelling of 885261239 in words is "eight hundred eighty-five million, two hundred sixty-one thousand, two hundred thirty-nine".