28333895 has 8 divisors (see below), whose sum is σ = 34179840. Its totient is φ = 22547680.

The previous prime is 28333891. The next prime is 28333901. The reversal of 28333895 is 59833382.

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

It is not a de Polignac number, because 28333895 - 2² = 28333891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333891) 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, 13880 + ... + 15789.

It is an arithmetic number, because the mean of its divisors is an integer number (4272480).

Almost surely, 2^28333895 is an apocalyptic number.

28333895 is a deficient number, since it is larger than the sum of its proper divisors (5845945).

28333895 is a wasteful number, since it uses less digits than its factorization.

28333895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29865.

The product of its digits is 155520, while the sum is 41.

The square root of 28333895 is about 5322.9592333588. The cubic root of 28333895 is about 304.8611569071.

The spelling of 28333895 in words is "twenty-eight million, three hundred thirty-three thousand, eight hundred ninety-five".