1397308 has 18 divisors (see below), whose sum is σ = 2688728. Its totient is φ = 634920.

The previous prime is 1397303. The next prime is 1397311. The reversal of 1397308 is 8037931.

It is a self number, because there is not a number n which added to its sum of digits gives 1397308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 960 + ... + 1927.

2^1397308 is an apocalyptic number.

It is an amenable number.

1397308 is a deficient number, since it is larger than the sum of its proper divisors (1291420).

1397308 is a wasteful number, since it uses less digits than its factorization.

1397308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1397308 is about 1182.0778316169. The cubic root of 1397308 is about 111.7971455669.

It can be divided in two parts, 139 and 7308, that added together give a palindrome (7447).

The spelling of 1397308 in words is "one million, three hundred ninety-seven thousand, three hundred eight".