28788248 has 16 divisors (see below), whose sum is σ = 54068280. Its totient is φ = 14370048.

The previous prime is 28788247. The next prime is 28788251. The reversal of 28788248 is 84288782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28788247) 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, 2711 + ... + 8057.

Almost surely, 2^28788248 is an apocalyptic number.

It is an amenable number.

28788248 is a deficient number, since it is larger than the sum of its proper divisors (25280032).

28788248 is a wasteful number, since it uses less digits than its factorization.

28788248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026 (or 6022 counting only the distinct ones).

The product of its digits is 458752, while the sum is 47.

The square root of 28788248 is about 5365.4681063259. The cubic root of 28788248 is about 306.4820743756.

The spelling of 28788248 in words is "twenty-eight million, seven hundred eighty-eight thousand, two hundred forty-eight".