1227906 has 16 divisors (see below), whose sum is σ = 2728800. Its totient is φ = 409284.

The previous prime is 1227887. The next prime is 1227911. The reversal of 1227906 is 6097221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1227906.

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, 11316 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (170550).

2^1227906 is an apocalyptic number.

1227906 is an abundant number, since it is smaller than the sum of its proper divisors (1500894).

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

1227906 is a wasteful number, since it uses less digits than its factorization.

1227906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22750 (or 22744 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1227906 is about 1108.1092003950. The cubic root of 1227906 is about 107.0832903181.

The spelling of 1227906 in words is "one million, two hundred twenty-seven thousand, nine hundred six".