1276866 has 12 divisors (see below), whose sum is σ = 2766582. Its totient is φ = 425616.

The previous prime is 1276861. The next prime is 1276867. The reversal of 1276866 is 6686721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 77841 = 1095^2 + 279^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1276866.

It is not an unprimeable number, because it can be changed into a prime (1276861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35451 + ... + 35486.

2^1276866 is an apocalyptic number.

1276866 is an abundant number, since it is smaller than the sum of its proper divisors (1489716).

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

1276866 is a wasteful number, since it uses less digits than its factorization.

1276866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70945 (or 70942 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1276866 is about 1129.9849556521. The cubic root of 1276866 is about 108.4880178179.

The spelling of 1276866 in words is "one million, two hundred seventy-six thousand, eight hundred sixty-six".