28704374 has 8 divisors (see below), whose sum is σ = 44541360. Its totient is φ = 13857256.

The previous prime is 28704371. The next prime is 28704397. The reversal of 28704374 is 47340782.

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28704371) 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, 247394 + ... + 247509.

It is an arithmetic number, because the mean of its divisors is an integer number (5567670).

Almost surely, 2^28704374 is an apocalyptic number.

28704374 is a deficient number, since it is larger than the sum of its proper divisors (15836986).

28704374 is a wasteful number, since it uses less digits than its factorization.

28704374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494934.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 28704374 is about 5357.6463115812. The cubic root of 28704374 is about 306.1841416623.

The spelling of 28704374 in words is "twenty-eight million, seven hundred four thousand, three hundred seventy-four".