28650651 has 8 divisors (see below), whose sum is σ = 40211520. Its totient is φ = 18095112.

The previous prime is 28650631. The next prime is 28650653. The reversal of 28650651 is 15605682.

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

It is not a de Polignac number, because 28650651 - 2¹⁴ = 28634267 is a prime.

It is a super-3 number, since 3×28650651³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28650653) 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, 251265 + ... + 251378.

It is an arithmetic number, because the mean of its divisors is an integer number (5026440).

Almost surely, 2^28650651 is an apocalyptic number.

28650651 is a deficient number, since it is larger than the sum of its proper divisors (11560869).

28650651 is a wasteful number, since it uses less digits than its factorization.

28650651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502665.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 28650651 is about 5352.6302879986. The cubic root of 28650651 is about 305.9930046673.

The spelling of 28650651 in words is "twenty-eight million, six hundred fifty thousand, six hundred fifty-one".