1379668943 has 2 divisors, whose sum is σ = 1379668944. Its totient is φ = 1379668942.

The previous prime is 1379668937. The next prime is 1379668993. The reversal of 1379668943 is 3498669731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379668943 - 2²⁴ = 1362891727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1379668933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689834471 + 689834472.

It is an arithmetic number, because the mean of its divisors is an integer number (689834472).

Almost surely, 2^1379668943 is an apocalyptic number.

1379668943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379668943 is an equidigital number, since it uses as much as digits as its factorization.

1379668943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 56.

The square root of 1379668943 is about 37143.8950973104. The cubic root of 1379668943 is about 1113.2472459541.

The spelling of 1379668943 in words is "one billion, three hundred seventy-nine million, six hundred sixty-eight thousand, nine hundred forty-three".