1397583 has 24 divisors (see below), whose sum is σ = 2321280. Its totient is φ = 801360.

The previous prime is 1397581. The next prime is 1397603. The reversal of 1397583 is 3857931.

It is not a de Polignac number, because 1397583 - 2¹ = 1397581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1510 + ... + 2252.

It is an arithmetic number, because the mean of its divisors is an integer number (96720).

2^1397583 is an apocalyptic number.

1397583 is a deficient number, since it is larger than the sum of its proper divisors (923697).

1397583 is a wasteful number, since it uses less digits than its factorization.

1397583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1397583 is about 1182.1941464920. The cubic root of 1397583 is about 111.8044792396.

The spelling of 1397583 in words is "one million, three hundred ninety-seven thousand, five hundred eighty-three".