28713948 has 24 divisors (see below), whose sum is σ = 67119360. Its totient is φ = 9554160.

The previous prime is 28713947. The next prime is 28713953. The reversal of 28713948 is 84931782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28713941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6093 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (2796640).

Almost surely, 2^28713948 is an apocalyptic number.

It is an amenable number.

28713948 is an abundant number, since it is smaller than the sum of its proper divisors (38405412).

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

28713948 is a wasteful number, since it uses less digits than its factorization.

28713948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297 (or 4295 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 28713948 is about 5358.5397264553. The cubic root of 28713948 is about 306.2181792288.

The spelling of 28713948 in words is "twenty-eight million, seven hundred thirteen thousand, nine hundred forty-eight".