28894659 has 16 divisors (see below), whose sum is σ = 39137280. Its totient is φ = 18960480.

The previous prime is 28894639. The next prime is 28894661. The reversal of 28894659 is 95649882.

It is not a de Polignac number, because 28894659 - 2¹⁵ = 28861891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28894639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68752 + ... + 69170.

It is an arithmetic number, because the mean of its divisors is an integer number (2446080).

Almost surely, 2^28894659 is an apocalyptic number.

28894659 is a deficient number, since it is larger than the sum of its proper divisors (10242621).

28894659 is a wasteful number, since it uses less digits than its factorization.

28894659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its digits is 1244160, while the sum is 51.

The square root of 28894659 is about 5375.3752427156. The cubic root of 28894659 is about 306.8592301673.

The spelling of 28894659 in words is "twenty-eight million, eight hundred ninety-four thousand, six hundred fifty-nine".