28725435 has 40 divisors (see below), whose sum is σ = 54217680. Its totient is φ = 14510016.

The previous prime is 28725421. The next prime is 28725443. The reversal of 28725435 is 53452782.

It is not a de Polignac number, because 28725435 - 2⁹ = 28724923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28725435.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5829 + ... + 9561.

It is an arithmetic number, because the mean of its divisors is an integer number (1355442).

Almost surely, 2^28725435 is an apocalyptic number.

28725435 is a deficient number, since it is larger than the sum of its proper divisors (25492245).

28725435 is a wasteful number, since it uses less digits than its factorization.

28725435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769 (or 3760 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 28725435 is about 5359.6114597982. The cubic root of 28725435 is about 306.2590079261.

The spelling of 28725435 in words is "twenty-eight million, seven hundred twenty-five thousand, four hundred thirty-five".