28097696 has 24 divisors (see below), whose sum is σ = 60346944. Its totient is φ = 12771520.

The previous prime is 28097683. The next prime is 28097701. The reversal of 28097696 is 69679082.

It is a self number, because there is not a number n which added to its sum of digits gives 28097696.

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, 39560 + ... + 40263.

It is an arithmetic number, because the mean of its divisors is an integer number (2514456).

Almost surely, 2^28097696 is an apocalyptic number.

It is an amenable number.

28097696 is an abundant number, since it is smaller than the sum of its proper divisors (32249248).

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

28097696 is a wasteful number, since it uses less digits than its factorization.

28097696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79844 (or 79836 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 28097696 is about 5300.7259880133. The cubic root of 28097696 is about 304.0116569861.

The spelling of 28097696 in words is "twenty-eight million, ninety-seven thousand, six hundred ninety-six".