13028579 has 4 divisors (see below), whose sum is σ = 13794984. Its totient is φ = 12262176.

The previous prime is 13028539. The next prime is 13028581. The reversal of 13028579 is 97582031.

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

It is a cyclic number.

It is not a de Polignac number, because 13028579 - 2¹² = 13024483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13028539) 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, 383177 + ... + 383210.

It is an arithmetic number, because the mean of its divisors is an integer number (3448746).

Almost surely, 2^13028579 is an apocalyptic number.

13028579 is a deficient number, since it is larger than the sum of its proper divisors (766405).

13028579 is an equidigital number, since it uses as much as digits as its factorization.

13028579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766404.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 13028579 is about 3609.5122939256. The cubic root of 13028579 is about 235.3056472622.

The spelling of 13028579 in words is "thirteen million, twenty-eight thousand, five hundred seventy-nine".