1397229 has 4 divisors (see below), whose sum is σ = 1862976. Its totient is φ = 931484.

The previous prime is 1397219. The next prime is 1397233. The reversal of 1397229 is 9227931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1397229 - 2⁷ = 1397101 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1397229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232869 + ... + 232874.

It is an arithmetic number, because the mean of its divisors is an integer number (465744).

2^1397229 is an apocalyptic number.

It is an amenable number.

1397229 is a deficient number, since it is larger than the sum of its proper divisors (465747).

1397229 is an equidigital number, since it uses as much as digits as its factorization.

1397229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465746.

The product of its digits is 6804, while the sum is 33.

The square root of 1397229 is about 1182.0444154092. The cubic root of 1397229 is about 111.7950386249.

It can be divided in two parts, 1397 and 229, that multiplied together give a palindrome (319913).

The spelling of 1397229 in words is "one million, three hundred ninety-seven thousand, two hundred twenty-nine".