1384631 has 2 divisors, whose sum is σ = 1384632. Its totient is φ = 1384630.

The previous prime is 1384619. The next prime is 1384661. The reversal of 1384631 is 1364831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1384631 - 2¹⁰ = 1383607 is a prime.

It is a super-2 number, since 2×1384631² = 3834406012322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1384631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692315 + 692316.

It is an arithmetic number, because the mean of its divisors is an integer number (692316).

2^1384631 is an apocalyptic number.

1384631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384631 is an equidigital number, since it uses as much as digits as its factorization.

1384631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 1384631 is about 1176.7034460730. The cubic root of 1384631 is about 111.4580267924.

The spelling of 1384631 in words is "one million, three hundred eighty-four thousand, six hundred thirty-one".