12773539 has 4 divisors (see below), whose sum is σ = 12953520. Its totient is φ = 12593560.

The previous prime is 12773531. The next prime is 12773549. The reversal of 12773539 is 93537721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12773539 - 2³ = 12773531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12773498 and 12773507.

It is not an unprimeable number, because it can be changed into a prime (12773531) 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, 89884 + ... + 90025.

It is an arithmetic number, because the mean of its divisors is an integer number (3238380).

Almost surely, 2^12773539 is an apocalyptic number.

12773539 is a deficient number, since it is larger than the sum of its proper divisors (179981).

12773539 is an equidigital number, since it uses as much as digits as its factorization.

12773539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179980.

The product of its digits is 39690, while the sum is 37.

The square root of 12773539 is about 3574.0088136433. The cubic root of 12773539 is about 233.7601152838.

The spelling of 12773539 in words is "twelve million, seven hundred seventy-three thousand, five hundred thirty-nine".