1228927 has 6 divisors (see below), whose sum is σ = 1407848. Its totient is φ = 1050852.

The previous prime is 1228919. The next prime is 1228937. The reversal of 1228927 is 7298221.

It is not a de Polignac number, because 1228927 - 2³ = 1228919 is a prime.

It is a Duffinian number.

1228927 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228907) 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 5 ways as a sum of consecutive naturals, for example, 2724 + ... + 3142.

2^1228927 is an apocalyptic number.

1228927 is a deficient number, since it is larger than the sum of its proper divisors (178921).

1228927 is an frugal number, since it uses more digits than its factorization.

1228927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 426 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 1228927 is about 1108.5697993361. The cubic root of 1228927 is about 107.1129619027.

Multiplying 1228927 by its product of digits (4032), we get a square (4955033664 = 70392²).

The spelling of 1228927 in words is "one million, two hundred twenty-eight thousand, nine hundred twenty-seven".