28924748 has 6 divisors (see below), whose sum is σ = 50618316. Its totient is φ = 14462372.

The previous prime is 28924747. The next prime is 28924751. The reversal of 28924748 is 84742982.

It is a junction number, because it is equal to n+sod(n) for n = 28924699 and 28924708.

It is not an unprimeable number, because it can be changed into a prime (28924741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3615590 + ... + 3615597.

It is an arithmetic number, because the mean of its divisors is an integer number (8436386).

Almost surely, 2^28924748 is an apocalyptic number.

It is an amenable number.

28924748 is a deficient number, since it is larger than the sum of its proper divisors (21693568).

28924748 is a wasteful number, since it uses less digits than its factorization.

28924748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231191 (or 7231189 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 28924748 is about 5378.1732958320. The cubic root of 28924748 is about 306.9657075653.

The spelling of 28924748 in words is "twenty-eight million, nine hundred twenty-four thousand, seven hundred forty-eight".