28671338 has 8 divisors (see below), whose sum is σ = 43085088. Its totient is φ = 14309644.

The previous prime is 28671319. The next prime is 28671347. The reversal of 28671338 is 83317682.

It is a happy number.

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

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, 11606 + ... + 13857.

It is an arithmetic number, because the mean of its divisors is an integer number (5385636).

Almost surely, 2^28671338 is an apocalyptic number.

28671338 is a deficient number, since it is larger than the sum of its proper divisors (14413750).

28671338 is a wasteful number, since it uses less digits than its factorization.

28671338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26028.

The product of its digits is 48384, while the sum is 38.

The square root of 28671338 is about 5354.5623537316. The cubic root of 28671338 is about 306.0666336443.

The spelling of 28671338 in words is "twenty-eight million, six hundred seventy-one thousand, three hundred thirty-eight".