1222479 has 16 divisors (see below), whose sum is σ = 1907200. Its totient is φ = 771768.

The previous prime is 1222471. The next prime is 1222483. The reversal of 1222479 is 9742221.

It is not a de Polignac number, because 1222479 - 2³ = 1222471 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (119200).

2^1222479 is an apocalyptic number.

1222479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1222479 is a deficient number, since it is larger than the sum of its proper divisors (684721).

1222479 is a wasteful number, since it uses less digits than its factorization.

1222479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2405 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1222479 is about 1105.6577228058. The cubic root of 1222479 is about 106.9252979623.

It can be divided in two parts, 122 and 2479, that added together give a square (2601 = 51²).

The spelling of 1222479 in words is "one million, two hundred twenty-two thousand, four hundred seventy-nine".