1223397 has 16 divisors (see below), whose sum is σ = 2071680. Its totient is φ = 698976.

The previous prime is 1223381. The next prime is 1223419. The reversal of 1223397 is 7933221.

It is not a de Polignac number, because 1223397 - 2⁴ = 1223381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1223397 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3048 + ... + 3425.

It is an arithmetic number, because the mean of its divisors is an integer number (129480).

2^1223397 is an apocalyptic number.

It is an amenable number.

1223397 is a deficient number, since it is larger than the sum of its proper divisors (848283).

1223397 is an equidigital number, since it uses as much as digits as its factorization.

1223397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6489 (or 6483 counting only the distinct ones).

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

The square root of 1223397 is about 1106.0727824153. The cubic root of 1223397 is about 106.9520558490.

It can be divided in two parts, 12 and 23397, that added together give a square (23409 = 153²).

The spelling of 1223397 in words is "one million, two hundred twenty-three thousand, three hundred ninety-seven".