1272776 has 8 divisors (see below), whose sum is σ = 2386470. Its totient is φ = 636384.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272776 is 6772721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1267876 + 4900 = 1126^2 + 70^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 79541 + ... + 79556.

2^1272776 is an apocalyptic number.

It is an amenable number.

1272776 is a deficient number, since it is larger than the sum of its proper divisors (1113694).

1272776 is a wasteful number, since it uses less digits than its factorization.

1272776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159103 (or 159099 counting only the distinct ones).

The product of its digits is 8232, while the sum is 32.

The square root of 1272776 is about 1128.1737454843. The cubic root of 1272776 is about 108.3720592648.

Subtracting 1272776 from its reverse (6772721), we obtain a palindrome (5499945).

It can be divided in two parts, 1272 and 776, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 1272776 in words is "one million, two hundred seventy-two thousand, seven hundred seventy-six".