28222895 has 8 divisors (see below), whose sum is σ = 34331856. Its totient is φ = 22268736.

The previous prime is 28222891. The next prime is 28222903. The reversal of 28222895 is 59822282.

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 28222895 - 2² = 28222891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222891) 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, 38297 + ... + 39026.

It is an arithmetic number, because the mean of its divisors is an integer number (4291482).

Almost surely, 2^28222895 is an apocalyptic number.

28222895 is a deficient number, since it is larger than the sum of its proper divisors (6108961).

28222895 is an equidigital number, since it uses as much as digits as its factorization.

28222895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77401.

The product of its digits is 46080, while the sum is 38.

The square root of 28222895 is about 5312.5224705407. The cubic root of 28222895 is about 304.4625309918.

The spelling of 28222895 in words is "twenty-eight million, two hundred twenty-two thousand, eight hundred ninety-five".