1396307953 has 2 divisors, whose sum is σ = 1396307954. Its totient is φ = 1396307952.

The previous prime is 1396307947. The next prime is 1396307987. The reversal of 1396307953 is 3597036931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 880427584 + 515880369 = 29672^2 + 22713^2 .

It is an emirp because it is prime and its reverse (3597036931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396307953 is a prime.

It is a super-2 number, since 2×1396307953² = 3899351799222100418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1396307923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698153976 + 698153977.

It is an arithmetic number, because the mean of its divisors is an integer number (698153977).

Almost surely, 2^1396307953 is an apocalyptic number.

It is an amenable number.

1396307953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396307953 is an equidigital number, since it uses as much as digits as its factorization.

1396307953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 46.

The square root of 1396307953 is about 37367.2042438286. The cubic root of 1396307953 is about 1117.7046829824.

The spelling of 1396307953 in words is "one billion, three hundred ninety-six million, three hundred seven thousand, nine hundred fifty-three".