28225193 has 8 divisors (see below), whose sum is σ = 28828800. Its totient is φ = 27628128.

The previous prime is 28225189. The next prime is 28225217. The reversal of 28225193 is 39152282.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28225193 - 2² = 28225189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28225793) 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, 7628 + ... + 10706.

It is an arithmetic number, because the mean of its divisors is an integer number (3603600).

Almost surely, 2^28225193 is an apocalyptic number.

It is an amenable number.

28225193 is a deficient number, since it is larger than the sum of its proper divisors (603607).

28225193 is a wasteful number, since it uses less digits than its factorization.

28225193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271.

The product of its digits is 8640, while the sum is 32.

The square root of 28225193 is about 5312.7387475764. The cubic root of 28225193 is about 304.4707942110.

The spelling of 28225193 in words is "twenty-eight million, two hundred twenty-five thousand, one hundred ninety-three".