28695424 has 64 divisors (see below), whose sum is σ = 60233040. Its totient is φ = 13602816.

The previous prime is 28695397. The next prime is 28695479. The reversal of 28695424 is 42459682.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345687 + ... + 345769.

Almost surely, 2^28695424 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 28695424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30116520).

28695424 is an abundant number, since it is smaller than the sum of its proper divisors (31537616).

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

28695424 is an equidigital number, since it uses as much as digits as its factorization.

28695424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 195 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 28695424 is about 5356.8109916255. The cubic root of 28695424 is about 306.1523157005.

The spelling of 28695424 in words is "twenty-eight million, six hundred ninety-five thousand, four hundred twenty-four".