28071048 has 16 divisors (see below), whose sum is σ = 70177680. Its totient is φ = 9357008.

The previous prime is 28071013. The next prime is 28071059. The reversal of 28071048 is 84017082.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 584790 + ... + 584837.

It is an arithmetic number, because the mean of its divisors is an integer number (4386105).

Almost surely, 2^28071048 is an apocalyptic number.

It is an amenable number.

28071048 is an abundant number, since it is smaller than the sum of its proper divisors (42106632).

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

28071048 is a wasteful number, since it uses less digits than its factorization.

28071048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169636 (or 1169632 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 28071048 is about 5298.2117737969. The cubic root of 28071048 is about 303.9155178448.

The spelling of 28071048 in words is "twenty-eight million, seventy-one thousand, forty-eight".