1373668427 has 2 divisors, whose sum is σ = 1373668428. Its totient is φ = 1373668426.

The previous prime is 1373668409. The next prime is 1373668451. The reversal of 1373668427 is 7248663731.

It is a weak prime.

It is an emirp because it is prime and its reverse (7248663731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1373668427 - 2⁸ = 1373668171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373668487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686834213 + 686834214.

It is an arithmetic number, because the mean of its divisors is an integer number (686834214).

Almost surely, 2^1373668427 is an apocalyptic number.

1373668427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373668427 is an equidigital number, since it uses as much as digits as its factorization.

1373668427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 1373668427 is about 37063.0331597402. The cubic root of 1373668427 is about 1111.6309727623.

The spelling of 1373668427 in words is "one billion, three hundred seventy-three million, six hundred sixty-eight thousand, four hundred twenty-seven".