28647151 has 16 divisors (see below), whose sum is σ = 32090688. Its totient is φ = 25401600.

The previous prime is 28647133. The next prime is 28647161. The reversal of 28647151 is 15174682.

It is a 8-Lehmer number, since φ(28647151) divides (28647151-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 28647151 - 2⁵ = 28647119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28647161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37465 + ... + 38221.

It is an arithmetic number, because the mean of its divisors is an integer number (2005668).

Almost surely, 2^28647151 is an apocalyptic number.

28647151 is a deficient number, since it is larger than the sum of its proper divisors (3443537).

28647151 is a wasteful number, since it uses less digits than its factorization.

28647151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 13440, while the sum is 34.

The square root of 28647151 is about 5352.3033359480. The cubic root of 28647151 is about 305.9805439949.

The spelling of 28647151 in words is "twenty-eight million, six hundred forty-seven thousand, one hundred fifty-one".