12722566 has 8 divisors (see below), whose sum is σ = 19273104. Its totient is φ = 6298200.

The previous prime is 12722543. The next prime is 12722573. The reversal of 12722566 is 66522721.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31290 + ... + 31693.

It is an arithmetic number, because the mean of its divisors is an integer number (2409138).

Almost surely, 2^12722566 is an apocalyptic number.

12722566 is a deficient number, since it is larger than the sum of its proper divisors (6550538).

12722566 is a wasteful number, since it uses less digits than its factorization.

12722566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63086.

The product of its digits is 10080, while the sum is 31.

The square root of 12722566 is about 3566.8706172218. The cubic root of 12722566 is about 233.4487596710.

The spelling of 12722566 in words is "twelve million, seven hundred twenty-two thousand, five hundred sixty-six".