1394799859 has 2 divisors, whose sum is σ = 1394799860. Its totient is φ = 1394799858.

The previous prime is 1394799829. The next prime is 1394799881. The reversal of 1394799859 is 9589974931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1394799859 - 2⁵ = 1394799827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1394799859.

It is not a weakly prime, because it can be changed into another prime (1394799829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697399929 + 697399930.

It is an arithmetic number, because the mean of its divisors is an integer number (697399930).

Almost surely, 2^1394799859 is an apocalyptic number.

1394799859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394799859 is an equidigital number, since it uses as much as digits as its factorization.

1394799859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 64.

The square root of 1394799859 is about 37347.0194125314. The cubic root of 1394799859 is about 1117.3021426170.

The spelling of 1394799859 in words is "one billion, three hundred ninety-four million, seven hundred ninety-nine thousand, eight hundred fifty-nine".