28064678 has 8 divisors (see below), whose sum is σ = 42121080. Its totient is φ = 14024320.

The previous prime is 28064651. The next prime is 28064689. The reversal of 28064678 is 87646082.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2438 + ... + 7878.

It is an arithmetic number, because the mean of its divisors is an integer number (5265135).

Almost surely, 2^28064678 is an apocalyptic number.

28064678 is a deficient number, since it is larger than the sum of its proper divisors (14056402).

28064678 is a wasteful number, since it uses less digits than its factorization.

28064678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 28064678 is about 5297.6105934657. The cubic root of 28064678 is about 303.8925275109.

The spelling of 28064678 in words is "twenty-eight million, sixty-four thousand, six hundred seventy-eight".