12662073 has 6 divisors (see below), whose sum is σ = 18289674. Its totient is φ = 8441376.

The previous prime is 12662063. The next prime is 12662087. The reversal of 12662073 is 37026621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12616704 + 45369 = 3552^2 + 213^2 .

It is not a de Polignac number, because 12662073 - 2⁴ = 12662057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12662033) 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 5 ways as a sum of consecutive naturals, for example, 703440 + ... + 703457.

It is an arithmetic number, because the mean of its divisors is an integer number (3048279).

Almost surely, 2^12662073 is an apocalyptic number.

It is an amenable number.

12662073 is a deficient number, since it is larger than the sum of its proper divisors (5627601).

12662073 is a wasteful number, since it uses less digits than its factorization.

12662073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406903 (or 1406900 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 12662073 is about 3558.3806710356. The cubic root of 12662073 is about 233.0781725455.

Adding to 12662073 its reverse (37026621), we get a palindrome (49688694).

The spelling of 12662073 in words is "twelve million, six hundred sixty-two thousand, seventy-three".