1273973 has 4 divisors (see below), whose sum is σ = 1277580. Its totient is φ = 1270368.

The previous prime is 1273957. The next prime is 1273981. The reversal of 1273973 is 3793721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3793721 = 37 ⋅102533.

It can be written as a sum of positive squares in 2 ways, for example, as 786769 + 487204 = 887^2 + 698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1273973 - 2⁴ = 1273957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273903) 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 3 ways as a sum of consecutive naturals, for example, 1208 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (319395).

2^1273973 is an apocalyptic number.

It is an amenable number.

1273973 is a deficient number, since it is larger than the sum of its proper divisors (3607).

1273973 is an equidigital number, since it uses as much as digits as its factorization.

1273973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606.

The product of its digits is 7938, while the sum is 32.

The square root of 1273973 is about 1128.7041242062. The cubic root of 1273973 is about 108.4060219600.

The spelling of 1273973 in words is "one million, two hundred seventy-three thousand, nine hundred seventy-three".