1384857631 has 2 divisors, whose sum is σ = 1384857632. Its totient is φ = 1384857630.

The previous prime is 1384857599. The next prime is 1384857641. The reversal of 1384857631 is 1367584831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1384857631 - 2⁵ = 1384857599 is a prime.

It is a super-2 number, since 2×1384857631² = 3835661316277864322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384857641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692428815 + 692428816.

It is an arithmetic number, because the mean of its divisors is an integer number (692428816).

Almost surely, 2^1384857631 is an apocalyptic number.

1384857631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384857631 is an equidigital number, since it uses as much as digits as its factorization.

1384857631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 1384857631 is about 37213.6753223865. The cubic root of 1384857631 is about 1114.6410746563.

The spelling of 1384857631 in words is "one billion, three hundred eighty-four million, eight hundred fifty-seven thousand, six hundred thirty-one".