1392849863 has 2 divisors, whose sum is σ = 1392849864. Its totient is φ = 1392849862.

The previous prime is 1392849811. The next prime is 1392849919. The reversal of 1392849863 is 3689482931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1392849863 - 2¹⁰ = 1392848839 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 (1392842863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696424931 + 696424932.

It is an arithmetic number, because the mean of its divisors is an integer number (696424932).

Almost surely, 2^1392849863 is an apocalyptic number.

1392849863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392849863 is an equidigital number, since it uses as much as digits as its factorization.

1392849863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The square root of 1392849863 is about 37320.9038341785. The cubic root of 1392849863 is about 1116.7812194158.

The spelling of 1392849863 in words is "one billion, three hundred ninety-two million, eight hundred forty-nine thousand, eight hundred sixty-three".