28894679 has 16 divisors (see below), whose sum is σ = 33677856. Its totient is φ = 24703360.

The previous prime is 28894673. The next prime is 28894681. The reversal of 28894679 is 97649882.

It is not a de Polignac number, because 28894679 - 2⁸ = 28894423 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 28894679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28894673) 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, 21989 + ... + 23265.

It is an arithmetic number, because the mean of its divisors is an integer number (2104866).

Almost surely, 2^28894679 is an apocalyptic number.

28894679 is a deficient number, since it is larger than the sum of its proper divisors (4783177).

28894679 is a wasteful number, since it uses less digits than its factorization.

28894679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1305 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 28894679 is about 5375.3771030505. The cubic root of 28894679 is about 306.8593009668.

The spelling of 28894679 in words is "twenty-eight million, eight hundred ninety-four thousand, six hundred seventy-nine".