28712948 has 12 divisors (see below), whose sum is σ = 54815712. Its totient is φ = 13051320.

The previous prime is 28712941. The next prime is 28712953. The reversal of 28712948 is 84921782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28712941) 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, 326240 + ... + 326327.

It is an arithmetic number, because the mean of its divisors is an integer number (4567976).

Almost surely, 2^28712948 is an apocalyptic number.

It is an amenable number.

28712948 is a deficient number, since it is larger than the sum of its proper divisors (26102764).

28712948 is a wasteful number, since it uses less digits than its factorization.

28712948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652582 (or 652580 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 28712948 is about 5358.4464166398. The cubic root of 28712948 is about 306.2146243742.

The spelling of 28712948 in words is "twenty-eight million, seven hundred twelve thousand, nine hundred forty-eight".