12390773 has 4 divisors (see below), whose sum is σ = 13119660. Its totient is φ = 11661888.

The previous prime is 12390761. The next prime is 12390787. The reversal of 12390773 is 37709321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7091569 + 5299204 = 2663^2 + 2302^2 .

It is a cyclic number.

It is not a de Polignac number, because 12390773 - 2⁴ = 12390757 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 (12390673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364418 + ... + 364451.

It is an arithmetic number, because the mean of its divisors is an integer number (3279915).

Almost surely, 2^12390773 is an apocalyptic number.

It is an amenable number.

12390773 is a deficient number, since it is larger than the sum of its proper divisors (728887).

12390773 is an equidigital number, since it uses as much as digits as its factorization.

12390773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728886.

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

The square root of 12390773 is about 3520.0529825558. The cubic root of 12390773 is about 231.4014806874.

The spelling of 12390773 in words is "twelve million, three hundred ninety thousand, seven hundred seventy-three".