1272986 has 16 divisors (see below), whose sum is σ = 2243808. Its totient is φ = 534000.

The previous prime is 1272983. The next prime is 1272989. The reversal of 1272986 is 6892721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1272983) and next prime (1272989).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1272983) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1940 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (140238).

2^1272986 is an apocalyptic number.

1272986 is a deficient number, since it is larger than the sum of its proper divisors (970822).

1272986 is a wasteful number, since it uses less digits than its factorization.

1272986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4477.

The product of its digits is 12096, while the sum is 35.

The square root of 1272986 is about 1128.2668124163. The cubic root of 1272986 is about 108.3780191721.

It can be divided in two parts, 127 and 2986, that added together give a palindrome (3113).

The spelling of 1272986 in words is "one million, two hundred seventy-two thousand, nine hundred eighty-six".