1397322 has 24 divisors (see below), whose sum is σ = 3053700. Its totient is φ = 461760.

The previous prime is 1397311. The next prime is 1397329. The reversal of 1397322 is 2237931.

It can be written as a sum of positive squares in 2 ways, for example, as 1252161 + 145161 = 1119^2 + 381^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1397329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2422 + ... + 2942.

2^1397322 is an apocalyptic number.

1397322 is an abundant number, since it is smaller than the sum of its proper divisors (1656378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397322 is a wasteful number, since it uses less digits than its factorization.

1397322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 675 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 1397322 is about 1182.0837533779. The cubic root of 1397322 is about 111.7975189408.

The spelling of 1397322 in words is "one million, three hundred ninety-seven thousand, three hundred twenty-two".