28330895 has 8 divisors (see below), whose sum is σ = 34720704. Its totient is φ = 22182304.

The previous prime is 28330889. The next prime is 28330921. The reversal of 28330895 is 59803382.

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 28330895 - 2⁴ = 28330879 is a prime.

It is a super-2 number, since 2×28330895² = 1605279223002050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 60044 + ... + 60513.

It is an arithmetic number, because the mean of its divisors is an integer number (4340088).

Almost surely, 2^28330895 is an apocalyptic number.

28330895 is a deficient number, since it is larger than the sum of its proper divisors (6389809).

28330895 is a wasteful number, since it uses less digits than its factorization.

28330895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120609.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28330895 is about 5322.6774277613. The cubic root of 28330895 is about 304.8503969351.

The spelling of 28330895 in words is "twenty-eight million, three hundred thirty thousand, eight hundred ninety-five".