13028566 has 16 divisors (see below), whose sum is σ = 20962800. Its totient is φ = 6054048.

The previous prime is 13028539. The next prime is 13028581. The reversal of 13028566 is 66582031.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1221 + ... + 5248.

It is an arithmetic number, because the mean of its divisors is an integer number (1310175).

Almost surely, 2^13028566 is an apocalyptic number.

13028566 is a deficient number, since it is larger than the sum of its proper divisors (7934234).

13028566 is a wasteful number, since it uses less digits than its factorization.

13028566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 13028566 is about 3609.5104931278. The cubic root of 13028566 is about 235.3055689990.

The spelling of 13028566 in words is "thirteen million, twenty-eight thousand, five hundred sixty-six".