28894678 has 8 divisors (see below), whose sum is σ = 43365672. Its totient is φ = 14439456.

The previous prime is 28894673. The next prime is 28894681. The reversal of 28894678 is 87649882.

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

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 3 ways as a sum of consecutive naturals, for example, 3301 + ... + 8287.

It is an arithmetic number, because the mean of its divisors is an integer number (5420709).

Almost surely, 2^28894678 is an apocalyptic number.

28894678 is a deficient number, since it is larger than the sum of its proper divisors (14470994).

28894678 is a wasteful number, since it uses less digits than its factorization.

28894678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7886.

The product of its digits is 1548288, while the sum is 52.

The square root of 28894678 is about 5375.3770100338. The cubic root of 28894678 is about 306.8592974269.

The spelling of 28894678 in words is "twenty-eight million, eight hundred ninety-four thousand, six hundred seventy-eight".