28446613 has 8 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 26099184.

The previous prime is 28446611. The next prime is 28446617. The reversal of 28446613 is 31664482.

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

It is a cyclic number.

It is not a de Polignac number, because 28446613 - 2¹ = 28446611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446611) 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 7 ways as a sum of consecutive naturals, for example, 4381 + ... + 8722.

It is an arithmetic number, because the mean of its divisors is an integer number (3852576).

Almost surely, 2^28446613 is an apocalyptic number.

It is an amenable number.

28446613 is a deficient number, since it is larger than the sum of its proper divisors (2373995).

28446613 is a wasteful number, since it uses less digits than its factorization.

28446613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13283.

The product of its digits is 27648, while the sum is 34.

The square root of 28446613 is about 5333.5366315420. The cubic root of 28446613 is about 305.2648885768.

The spelling of 28446613 in words is "twenty-eight million, four hundred forty-six thousand, six hundred thirteen".