13028571 has 12 divisors (see below), whose sum is σ = 19085040. Its totient is φ = 8562960.

The previous prime is 13028539. The next prime is 13028581. The reversal of 13028571 is 17582031.

It is not a de Polignac number, because 13028571 - 2⁵ = 13028539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13028501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9556 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (1590420).

Almost surely, 2^13028571 is an apocalyptic number.

13028571 is a deficient number, since it is larger than the sum of its proper divisors (6056469).

13028571 is a wasteful number, since it uses less digits than its factorization.

13028571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20466 (or 20463 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 13028571 is about 3609.5111857425. The cubic root of 13028571 is about 235.3055991003.

The spelling of 13028571 in words is "thirteen million, twenty-eight thousand, five hundred seventy-one".