28345996 has 24 divisors (see below), whose sum is σ = 58226336. Its totient is φ = 11819520.

The previous prime is 28345991. The next prime is 28346011. The reversal of 28345996 is 69954382.

It is not an unprimeable number, because it can be changed into a prime (28345991) 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, 12645 + ... + 14716.

Almost surely, 2^28345996 is an apocalyptic number.

It is an amenable number.

28345996 is an abundant number, since it is smaller than the sum of its proper divisors (29880340).

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

28345996 is a wasteful number, since it uses less digits than its factorization.

28345996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27409 (or 27407 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 28345996 is about 5324.0957917754. The cubic root of 28345996 is about 304.9045513386.

The spelling of 28345996 in words is "twenty-eight million, three hundred forty-five thousand, nine hundred ninety-six".