28227597 has 8 divisors (see below), whose sum is σ = 39617760. Its totient is φ = 17827920.

The previous prime is 28227523. The next prime is 28227649. The reversal of 28227597 is 79572282.

It is a happy number.

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

It is not a de Polignac number, because 28227597 - 2¹⁶ = 28162061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28227197) 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 7 ways as a sum of consecutive naturals, for example, 247554 + ... + 247667.

It is an arithmetic number, because the mean of its divisors is an integer number (4952220).

Almost surely, 2^28227597 is an apocalyptic number.

It is an amenable number.

28227597 is a deficient number, since it is larger than the sum of its proper divisors (11390163).

28227597 is a wasteful number, since it uses less digits than its factorization.

28227597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495243.

The product of its digits is 141120, while the sum is 42.

The square root of 28227597 is about 5312.9649914149. The cubic root of 28227597 is about 304.4794381083.

The spelling of 28227597 in words is "twenty-eight million, two hundred twenty-seven thousand, five hundred ninety-seven".