869241239 has 2 divisors, whose sum is σ = 869241240. Its totient is φ = 869241238.

The previous prime is 869241227. The next prime is 869241251. The reversal of 869241239 is 932142968.

It is a balanced prime because it is at equal distance from previous prime (869241227) and next prime (869241251).

It is a cyclic number.

It is not a de Polignac number, because 869241239 - 2⁴ = 869241223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 869241239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869246239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434620619 + 434620620.

It is an arithmetic number, because the mean of its divisors is an integer number (434620620).

Almost surely, 2^869241239 is an apocalyptic number.

869241239 is a deficient number, since it is larger than the sum of its proper divisors (1).

869241239 is an equidigital number, since it uses as much as digits as its factorization.

869241239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 869241239 is about 29482.8973983223. The cubic root of 869241239 is about 954.3626638537.

The spelling of 869241239 in words is "eight hundred sixty-nine million, two hundred forty-one thousand, two hundred thirty-nine".