1227792 has 20 divisors (see below), whose sum is σ = 3171920. Its totient is φ = 409248.

The previous prime is 1227769. The next prime is 1227797. The reversal of 1227792 is 2977221.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1227797) 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, 12742 + ... + 12837.

It is an arithmetic number, because the mean of its divisors is an integer number (158596).

2^1227792 is an apocalyptic number.

1227792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1227792 is an abundant number, since it is smaller than the sum of its proper divisors (1944128).

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

1227792 is a wasteful number, since it uses less digits than its factorization.

1227792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25590 (or 25584 counting only the distinct ones).

The product of its digits is 3528, while the sum is 30.

The square root of 1227792 is about 1108.0577602273. The cubic root of 1227792 is about 107.0799763096.

The spelling of 1227792 in words is "one million, two hundred twenty-seven thousand, seven hundred ninety-two".