1227872 has 12 divisors (see below), whose sum is σ = 2417436. Its totient is φ = 613920.

The previous prime is 1227871. The next prime is 1227881. The reversal of 1227872 is 2787221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19154 + ... + 19217.

It is an arithmetic number, because the mean of its divisors is an integer number (201453).

2^1227872 is an apocalyptic number.

It is an amenable number.

1227872 is a deficient number, since it is larger than the sum of its proper divisors (1189564).

1227872 is an equidigital number, since it uses as much as digits as its factorization.

1227872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38381 (or 38373 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 1227872 is about 1108.0938588405. The cubic root of 1227872 is about 107.0823019511.

The spelling of 1227872 in words is "one million, two hundred twenty-seven thousand, eight hundred seventy-two".