28037013 has 8 divisors (see below), whose sum is σ = 37668576. Its totient is φ = 18548400.

The previous prime is 28037011. The next prime is 28037017. The reversal of 28037013 is 31073082.

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

It is not a de Polignac number, because 28037013 - 2¹ = 28037011 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28037011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35278 + ... + 36063.

It is an arithmetic number, because the mean of its divisors is an integer number (4708572).

Almost surely, 2^28037013 is an apocalyptic number.

It is an amenable number.

28037013 is a deficient number, since it is larger than the sum of its proper divisors (9631563).

28037013 is a wasteful number, since it uses less digits than its factorization.

28037013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71475.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 28037013 is about 5294.9988668554. The cubic root of 28037013 is about 303.7926397828.

The spelling of 28037013 in words is "twenty-eight million, thirty-seven thousand, thirteen".