1276863 has 16 divisors (see below), whose sum is σ = 1994496. Its totient is φ = 711360.

The previous prime is 1276861. The next prime is 1276867. The reversal of 1276863 is 3686721.

It is not a de Polignac number, because 1276863 - 2¹ = 1276861 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 120 + ... + 1602.

It is an arithmetic number, because the mean of its divisors is an integer number (124656).

2^1276863 is an apocalyptic number.

1276863 is a deficient number, since it is larger than the sum of its proper divisors (717633).

1276863 is a wasteful number, since it uses less digits than its factorization.

1276863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534.

The product of its digits is 12096, while the sum is 33.

The square root of 1276863 is about 1129.9836282000. The cubic root of 1276863 is about 108.4879328535.

The spelling of 1276863 in words is "one million, two hundred seventy-six thousand, eight hundred sixty-three".