1276885 has 8 divisors (see below), whose sum is σ = 1568160. Its totient is φ = 997584.

The previous prime is 1276871. The next prime is 1276889. The reversal of 1276885 is 5886721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1276885 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2755 + ... + 3184.

It is an arithmetic number, because the mean of its divisors is an integer number (196020).

2^1276885 is an apocalyptic number.

It is an amenable number.

1276885 is a deficient number, since it is larger than the sum of its proper divisors (291275).

1276885 is an equidigital number, since it uses as much as digits as its factorization.

1276885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987.

The product of its digits is 26880, while the sum is 37.

The square root of 1276885 is about 1129.9933628124. The cubic root of 1276885 is about 108.4885559224.

The spelling of 1276885 in words is "one million, two hundred seventy-six thousand, eight hundred eighty-five".