862848839 has 2 divisors, whose sum is σ = 862848840. Its totient is φ = 862848838.

The previous prime is 862848829. The next prime is 862848907. The reversal of 862848839 is 938848268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 862848839 - 2²⁸ = 594413383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (862848809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431424419 + 431424420.

It is an arithmetic number, because the mean of its divisors is an integer number (431424420).

Almost surely, 2^862848839 is an apocalyptic number.

862848839 is a deficient number, since it is larger than the sum of its proper divisors (1).

862848839 is an equidigital number, since it uses as much as digits as its factorization.

862848839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5308416, while the sum is 56.

The square root of 862848839 is about 29374.2887403253. The cubic root of 862848839 is about 952.0174445259.

The spelling of 862848839 in words is "eight hundred sixty-two million, eight hundred forty-eight thousand, eight hundred thirty-nine".