1396275427 has 2 divisors, whose sum is σ = 1396275428. Its totient is φ = 1396275426.

The previous prime is 1396275323. The next prime is 1396275437. The reversal of 1396275427 is 7245726931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396275427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1396275437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698137713 + 698137714.

It is an arithmetic number, because the mean of its divisors is an integer number (698137714).

Almost surely, 2^1396275427 is an apocalyptic number.

1396275427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396275427 is an equidigital number, since it uses as much as digits as its factorization.

1396275427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 1396275427 is about 37366.7690200799. The cubic root of 1396275427 is about 1117.6960042033.

The spelling of 1396275427 in words is "one billion, three hundred ninety-six million, two hundred seventy-five thousand, four hundred twenty-seven".