28745696 has 48 divisors (see below), whose sum is σ = 65126880. Its totient is φ = 12234240.

The previous prime is 28745687. The next prime is 28745729. The reversal of 28745696 is 69654782.

It is a self number, because there is not a number n which added to its sum of digits gives 28745696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40190 + ... + 40898.

It is an arithmetic number, because the mean of its divisors is an integer number (1356810).

Almost surely, 2^28745696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28745696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32563440).

28745696 is an abundant number, since it is smaller than the sum of its proper divisors (36381184).

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

28745696 is a wasteful number, since it uses less digits than its factorization.

28745696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 899 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 28745696 is about 5361.5012822903. The cubic root of 28745696 is about 306.3309958750.

The spelling of 28745696 in words is "twenty-eight million, seven hundred forty-five thousand, six hundred ninety-six".