28893274 has 8 divisors (see below), whose sum is σ = 44397108. Its totient is φ = 14094240.

The previous prime is 28893191. The next prime is 28893283. The reversal of 28893274 is 47239882.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27489049 + 1404225 = 5243^2 + 1185^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28893274.

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, 176097 + ... + 176260.

Almost surely, 2^28893274 is an apocalyptic number.

28893274 is a deficient number, since it is larger than the sum of its proper divisors (15503834).

28893274 is a wasteful number, since it uses less digits than its factorization.

28893274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352400.

The product of its digits is 193536, while the sum is 43.

The square root of 28893274 is about 5375.2464129563. The cubic root of 28893274 is about 306.8543272217.

The spelling of 28893274 in words is "twenty-eight million, eight hundred ninety-three thousand, two hundred seventy-four".