1272772 has 12 divisors (see below), whose sum is σ = 2344720. Its totient is φ = 602856.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272772 is 2772721.

It is a self number, because there is not a number n which added to its sum of digits gives 1272772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298 + ... + 8449.

2^1272772 is an apocalyptic number.

It is an amenable number.

1272772 is a deficient number, since it is larger than the sum of its proper divisors (1071948).

1272772 is a wasteful number, since it uses less digits than its factorization.

1272772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16770 (or 16768 counting only the distinct ones).

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

The square root of 1272772 is about 1128.1719727063. The cubic root of 1272772 is about 108.3719457364.

The spelling of 1272772 in words is "one million, two hundred seventy-two thousand, seven hundred seventy-two".