1397223 has 8 divisors (see below), whose sum is σ = 2070000. Its totient is φ = 931464.

The previous prime is 1397219. The next prime is 1397233. The reversal of 1397223 is 3227931.

It is not a de Polignac number, because 1397223 - 2² = 1397219 is a prime.

It is a super-2 number, since 2×1397223² = 3904464223458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 51749 = 1397223 / (1 + 3 + 9 + 7 + 2 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25848 + ... + 25901.

It is an arithmetic number, because the mean of its divisors is an integer number (258750).

2^1397223 is an apocalyptic number.

1397223 is a deficient number, since it is larger than the sum of its proper divisors (672777).

1397223 is an equidigital number, since it uses as much as digits as its factorization.

1397223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51758 (or 51752 counting only the distinct ones).

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

The square root of 1397223 is about 1182.0418774307. The cubic root of 1397223 is about 111.7948786007.

The spelling of 1397223 in words is "one million, three hundred ninety-seven thousand, two hundred twenty-three".