28748846 has 12 divisors (see below), whose sum is σ = 49318152. Its totient is φ = 12312336.

The previous prime is 28748821. The next prime is 28748851. The reversal of 28748846 is 64884782.

It is a happy number.

It is a super-2 number, since 2×28748846² = 1652992292663432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28748846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19346 + ... + 20778.

It is an arithmetic number, because the mean of its divisors is an integer number (4109846).

Almost surely, 2^28748846 is an apocalyptic number.

28748846 is a deficient number, since it is larger than the sum of its proper divisors (20569306).

28748846 is an frugal number, since it uses more digits than its factorization.

28748846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 1442 counting only the distinct ones).

The product of its digits is 688128, while the sum is 47.

The square root of 28748846 is about 5361.7950352471. The cubic root of 28748846 is about 306.3421848821.

The spelling of 28748846 in words is "twenty-eight million, seven hundred forty-eight thousand, eight hundred forty-six".