1276728 has 16 divisors (see below), whose sum is σ = 3191880. Its totient is φ = 425568.

The previous prime is 1276721. The next prime is 1276733. The reversal of 1276728 is 8276721.

It is a super-3 number, since 3×1276728³ = 6243331624645741056, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276721) 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, 26575 + ... + 26622.

2^1276728 is an apocalyptic number.

It is an amenable number.

1276728 is an abundant number, since it is smaller than the sum of its proper divisors (1915152).

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

1276728 is a wasteful number, since it uses less digits than its factorization.

1276728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53206 (or 53202 counting only the distinct ones).

The product of its digits is 9408, while the sum is 33.

The square root of 1276728 is about 1129.9238912422. The cubic root of 1276728 is about 108.4841093195.

The spelling of 1276728 in words is "one million, two hundred seventy-six thousand, seven hundred twenty-eight".