1396921327 has 2 divisors, whose sum is σ = 1396921328. Its totient is φ = 1396921326.

The previous prime is 1396921321. The next prime is 1396921367. The reversal of 1396921327 is 7231296931.

It is a weak prime.

It is an emirp because it is prime and its reverse (7231296931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396921327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1396921321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698460663 + 698460664.

It is an arithmetic number, because the mean of its divisors is an integer number (698460664).

Almost surely, 2^1396921327 is an apocalyptic number.

1396921327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396921327 is an equidigital number, since it uses as much as digits as its factorization.

1396921327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The square root of 1396921327 is about 37375.4107268402. The cubic root of 1396921327 is about 1117.8683218198.

The spelling of 1396921327 in words is "one billion, three hundred ninety-six million, nine hundred twenty-one thousand, three hundred twenty-seven".