28025698 has 8 divisors (see below), whose sum is σ = 42666192. Its totient is φ = 13803636.

The previous prime is 28025693. The next prime is 28025713. The reversal of 28025698 is 89652082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28025698.

It is not an unprimeable number, because it can be changed into a prime (28025693) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 104440 + ... + 104707.

It is an arithmetic number, because the mean of its divisors is an integer number (5333274).

Almost surely, 2^28025698 is an apocalyptic number.

28025698 is a deficient number, since it is larger than the sum of its proper divisors (14640494).

28025698 is a wasteful number, since it uses less digits than its factorization.

28025698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209216.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28025698 is about 5293.9302979922. The cubic root of 28025698 is about 303.7517667145.

The spelling of 28025698 in words is "twenty-eight million, twenty-five thousand, six hundred ninety-eight".