28225335 has 16 divisors (see below), whose sum is σ = 45230976. Its totient is φ = 15030048.

The previous prime is 28225331. The next prime is 28225349. The reversal of 28225335 is 53352282.

It is not a de Polignac number, because 28225335 - 2² = 28225331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28225331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13212 + ... + 15198.

It is an arithmetic number, because the mean of its divisors is an integer number (2826936).

Almost surely, 2^28225335 is an apocalyptic number.

28225335 is a deficient number, since it is larger than the sum of its proper divisors (17005641).

28225335 is a wasteful number, since it uses less digits than its factorization.

28225335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942.

The product of its digits is 14400, while the sum is 30.

The square root of 28225335 is about 5312.7521116649. The cubic root of 28225335 is about 304.4713048043.

The spelling of 28225335 in words is "twenty-eight million, two hundred twenty-five thousand, three hundred thirty-five".