28927548 has 72 divisors (see below), whose sum is σ = 79589328. Its totient is φ = 8805888.

The previous prime is 28927543. The next prime is 28927553. The reversal of 28927548 is 84572982.

28927548 is a `hidden beast` number, since 2 + 89 + 27 + 548 = 666.

It is an interprime number because it is at equal distance from previous prime (28927543) and next prime (28927553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28927543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52611 + ... + 53157.

Almost surely, 2^28927548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28927548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39794664).

28927548 is an abundant number, since it is smaller than the sum of its proper divisors (50661780).

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

28927548 is a wasteful number, since it uses less digits than its factorization.

28927548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 678 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28927548 is about 5378.4336009660. The cubic root of 28927548 is about 306.9756123044.

It can be divided in two parts, 2892 and 7548, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 28927548 in words is "twenty-eight million, nine hundred twenty-seven thousand, five hundred forty-eight".