1396347427 has 2 divisors, whose sum is σ = 1396347428. Its totient is φ = 1396347426.

The previous prime is 1396347389. The next prime is 1396347439. The reversal of 1396347427 is 7247436931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1396347427 - 2¹⁹ = 1395823139 is a prime.

It is a super-2 number, since 2×1396347427² = 3899572273779040658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1396347497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698173713 + 698173714.

It is an arithmetic number, because the mean of its divisors is an integer number (698173714).

Almost surely, 2^1396347427 is an apocalyptic number.

1396347427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396347427 is an equidigital number, since it uses as much as digits as its factorization.

1396347427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 46.

The square root of 1396347427 is about 37367.7324305342. The cubic root of 1396347427 is about 1117.7152154868.

The spelling of 1396347427 in words is "one billion, three hundred ninety-six million, three hundred forty-seven thousand, four hundred twenty-seven".