1394389463 has 2 divisors, whose sum is σ = 1394389464. Its totient is φ = 1394389462.

The previous prime is 1394389457. The next prime is 1394389471. The reversal of 1394389463 is 3649834931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1394389463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394389483) 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, 697194731 + 697194732.

It is an arithmetic number, because the mean of its divisors is an integer number (697194732).

Almost surely, 2^1394389463 is an apocalyptic number.

1394389463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394389463 is an equidigital number, since it uses as much as digits as its factorization.

1394389463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 50.

The square root of 1394389463 is about 37341.5246475020. The cubic root of 1394389463 is about 1117.1925495198.

The spelling of 1394389463 in words is "one billion, three hundred ninety-four million, three hundred eighty-nine thousand, four hundred sixty-three".