28227576 has 32 divisors (see below), whose sum is σ = 75998160. Its totient is φ = 8685312.

The previous prime is 28227523. The next prime is 28227649. The reversal of 28227576 is 67572282.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44925 + ... + 45548.

Almost surely, 2^28227576 is an apocalyptic number.

28227576 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28227576 is an abundant number, since it is smaller than the sum of its proper divisors (47770584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28227576 is a wasteful number, since it uses less digits than its factorization.

28227576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90495 (or 90491 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 28227576 is about 5312.9630151169. The cubic root of 28227576 is about 304.4793626022.

The spelling of 28227576 in words is "twenty-eight million, two hundred twenty-seven thousand, five hundred seventy-six".