28974286 has 8 divisors (see below), whose sum is σ = 47412504. Its totient is φ = 13170120.

The previous prime is 28974247. The next prime is 28974289. The reversal of 28974286 is 68247982.

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 (28974289) 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, 658485 + ... + 658528.

It is an arithmetic number, because the mean of its divisors is an integer number (5926563).

Almost surely, 2^28974286 is an apocalyptic number.

28974286 is a deficient number, since it is larger than the sum of its proper divisors (18438218).

28974286 is a wasteful number, since it uses less digits than its factorization.

28974286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317026.

The product of its digits is 387072, while the sum is 46.

The square root of 28974286 is about 5382.7767926972. The cubic root of 28974286 is about 307.1408493314.

The spelling of 28974286 in words is "twenty-eight million, nine hundred seventy-four thousand, two hundred eighty-six".