28646845 has 8 divisors (see below), whose sum is σ = 35870976. Its totient is φ = 21920976.

The previous prime is 28646833. The next prime is 28646857. The reversal of 28646845 is 54864682.

It is an interprime number because it is at equal distance from previous prime (28646833) and next prime (28646857).

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 28646845 - 2⁹ = 28646333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124437 + ... + 124666.

It is an arithmetic number, because the mean of its divisors is an integer number (4483872).

Almost surely, 2^28646845 is an apocalyptic number.

It is an amenable number.

28646845 is a deficient number, since it is larger than the sum of its proper divisors (7224131).

28646845 is a wasteful number, since it uses less digits than its factorization.

28646845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249131.

The product of its digits is 368640, while the sum is 43.

The square root of 28646845 is about 5352.2747500479. The cubic root of 28646845 is about 305.9794545278.

The spelling of 28646845 in words is "twenty-eight million, six hundred forty-six thousand, eight hundred forty-five".