1227928 has 16 divisors (see below), whose sum is σ = 2479680. Its totient is φ = 566688.

The previous prime is 1227917. The next prime is 1227929. The reversal of 1227928 is 8297221.

It is a self number, because there is not a number n which added to its sum of digits gives 1227928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227929) 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, 5800 + ... + 6007.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

2^1227928 is an apocalyptic number.

It is an amenable number.

1227928 is an abundant number, since it is smaller than the sum of its proper divisors (1251752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227928 is a wasteful number, since it uses less digits than its factorization.

1227928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11826 (or 11822 counting only the distinct ones).

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

The square root of 1227928 is about 1108.1191271700. The cubic root of 1227928 is about 107.0839298400.

The spelling of 1227928 in words is "one million, two hundred twenty-seven thousand, nine hundred twenty-eight".