28898736 has 20 divisors (see below), whose sum is σ = 74655192. Its totient is φ = 9632896.

The previous prime is 28898711. The next prime is 28898743. The reversal of 28898736 is 63789882.

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, 300981 + ... + 301076.

Almost surely, 2^28898736 is an apocalyptic number.

It is an amenable number.

28898736 is an abundant number, since it is smaller than the sum of its proper divisors (45756456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28898736 is a wasteful number, since it uses less digits than its factorization.

28898736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602068 (or 602062 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 28898736 is about 5375.7544586783. The cubic root of 28898736 is about 306.8736619722.

The spelling of 28898736 in words is "twenty-eight million, eight hundred ninety-eight thousand, seven hundred thirty-six".