28793072 has 40 divisors (see below), whose sum is σ = 69555072. Its totient is φ = 11217600.

The previous prime is 28793057. The next prime is 28793077. The reversal of 28793072 is 27039782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28793077) 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, 10454 + ... + 12917.

Almost surely, 2^28793072 is an apocalyptic number.

28793072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28793072 is an abundant number, since it is smaller than the sum of its proper divisors (40762000).

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

28793072 is a wasteful number, since it uses less digits than its factorization.

28793072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23397 (or 23391 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 28793072 is about 5365.9176288870. The cubic root of 28793072 is about 306.4991923208.

The spelling of 28793072 in words is "twenty-eight million, seven hundred ninety-three thousand, seventy-two".