28654627 has 4 divisors (see below), whose sum is σ = 29082376. Its totient is φ = 28226880.

The previous prime is 28654601. The next prime is 28654657. The reversal of 28654627 is 72645682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72645682 = 2 ⋅36322841.

It is a cyclic number.

It is not a de Polignac number, because 28654627 - 2¹¹ = 28652579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28654627.

It is not an unprimeable number, because it can be changed into a prime (28654657) 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 3 ways as a sum of consecutive naturals, for example, 213774 + ... + 213907.

It is an arithmetic number, because the mean of its divisors is an integer number (7270594).

Almost surely, 2^28654627 is an apocalyptic number.

28654627 is a deficient number, since it is larger than the sum of its proper divisors (427749).

28654627 is an equidigital number, since it uses as much as digits as its factorization.

28654627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427748.

The product of its digits is 161280, while the sum is 40.

The square root of 28654627 is about 5353.0016812999. The cubic root of 28654627 is about 306.0071587600.

The spelling of 28654627 in words is "twenty-eight million, six hundred fifty-four thousand, six hundred twenty-seven".