12773391 has 8 divisors (see below), whose sum is σ = 17106480. Its totient is φ = 8477952.

The previous prime is 12773381. The next prime is 12773393. The reversal of 12773391 is 19337721.

It is a happy number.

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

It is not a de Polignac number, because 12773391 - 2⁵ = 12773359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12773393) 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, 8610 + ... + 9983.

It is an arithmetic number, because the mean of its divisors is an integer number (2138310).

Almost surely, 2^12773391 is an apocalyptic number.

12773391 is a deficient number, since it is larger than the sum of its proper divisors (4333089).

12773391 is a wasteful number, since it uses less digits than its factorization.

12773391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825.

The product of its digits is 7938, while the sum is 33.

The square root of 12773391 is about 3573.9881085421. The cubic root of 12773391 is about 233.7592124635.

The spelling of 12773391 in words is "twelve million, seven hundred seventy-three thousand, three hundred ninety-one".