1397266 has 16 divisors (see below), whose sum is σ = 2296728. Its totient is φ = 633600.

The previous prime is 1397261. The next prime is 1397267. The reversal of 1397266 is 6627931.

It can be written as a sum of positive squares in 4 ways, for example, as 326041 + 1071225 = 571^2 + 1035^2 .

It is not an unprimeable number, because it can be changed into a prime (1397261) 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, 1146 + ... + 2026.

2^1397266 is an apocalyptic number.

1397266 is a deficient number, since it is larger than the sum of its proper divisors (899462).

1397266 is a wasteful number, since it uses less digits than its factorization.

1397266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 13608, while the sum is 34.

The square root of 1397266 is about 1182.0600661557. The cubic root of 1397266 is about 111.7960254304.

It can be divided in two parts, 13 and 97266, that added together give a palindrome (97279).

The spelling of 1397266 in words is "one million, three hundred ninety-seven thousand, two hundred sixty-six".