1227772 has 24 divisors (see below), whose sum is σ = 2645216. Its totient is φ = 485568.

The previous prime is 1227769. The next prime is 1227797. The reversal of 1227772 is 2777221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1227772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1323 + ... + 2050.

2^1227772 is an apocalyptic number.

It is an amenable number.

1227772 is an abundant number, since it is smaller than the sum of its proper divisors (1417444).

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

1227772 is a wasteful number, since it uses less digits than its factorization.

1227772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3395 counting only the distinct ones).

The product of its digits is 2744, while the sum is 28.

The square root of 1227772 is about 1108.0487353903. The cubic root of 1227772 is about 107.0793948834.

The spelling of 1227772 in words is "one million, two hundred twenty-seven thousand, seven hundred seventy-two".