28672548 has 12 divisors (see below), whose sum is σ = 66902640. Its totient is φ = 9557512.

The previous prime is 28672543. The next prime is 28672549. The reversal of 28672548 is 84527682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (28672541) 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, 1194678 + ... + 1194701.

It is an arithmetic number, because the mean of its divisors is an integer number (5575220).

Almost surely, 2^28672548 is an apocalyptic number.

It is an amenable number.

28672548 is an abundant number, since it is smaller than the sum of its proper divisors (38230092).

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

28672548 is a wasteful number, since it uses less digits than its factorization.

28672548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389386 (or 2389384 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 28672548 is about 5354.6753402984. The cubic root of 28672548 is about 306.0709391685.

The spelling of 28672548 in words is "twenty-eight million, six hundred seventy-two thousand, five hundred forty-eight".