1397285 has 16 divisors (see below), whose sum is σ = 1759296. Its totient is φ = 1064448.

The previous prime is 1397267. The next prime is 1397287. The reversal of 1397285 is 5827931.

It is a cyclic number.

It is not a de Polignac number, because 1397285 - 2⁸ = 1397029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14357 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (109956).

2^1397285 is an apocalyptic number.

It is an amenable number.

1397285 is a deficient number, since it is larger than the sum of its proper divisors (362011).

1397285 is an equidigital number, since it uses as much as digits as its factorization.

1397285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212.

The product of its digits is 15120, while the sum is 35.

The square root of 1397285 is about 1182.0681029450. The cubic root of 1397285 is about 111.7965321616.

The spelling of 1397285 in words is "one million, three hundred ninety-seven thousand, two hundred eighty-five".