28268651 has 8 divisors (see below), whose sum is σ = 28652400. Its totient is φ = 27887328.

The previous prime is 28268623. The next prime is 28268677. The reversal of 28268651 is 15686282.

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 28268651 - 2¹⁸ = 28006507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28268351) 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, 36965 + ... + 37721.

It is an arithmetic number, because the mean of its divisors is an integer number (3581550).

Almost surely, 2^28268651 is an apocalyptic number.

28268651 is a deficient number, since it is larger than the sum of its proper divisors (383749).

28268651 is a wasteful number, since it uses less digits than its factorization.

28268651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its digits is 46080, while the sum is 38.

The square root of 28268651 is about 5316.8271553625. The cubic root of 28268651 is about 304.6269774558.

The spelling of 28268651 in words is "twenty-eight million, two hundred sixty-eight thousand, six hundred fifty-one".