28195835 has 4 divisors (see below), whose sum is σ = 33835008. Its totient is φ = 22556664.

The previous prime is 28195819. The next prime is 28195879. The reversal of 28195835 is 53859182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28195835 - 2⁴ = 28195819 is a prime.

It is a super-2 number, since 2×28195835² = 1590010222694450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28195792 and 28195801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819579 + ... + 2819588.

It is an arithmetic number, because the mean of its divisors is an integer number (8458752).

Almost surely, 2^28195835 is an apocalyptic number.

28195835 is a deficient number, since it is larger than the sum of its proper divisors (5639173).

28195835 is an equidigital number, since it uses as much as digits as its factorization.

28195835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5639172.

The product of its digits is 86400, while the sum is 41.

The square root of 28195835 is about 5309.9750470223. The cubic root of 28195835 is about 304.3651940532.

The spelling of 28195835 in words is "twenty-eight million, one hundred ninety-five thousand, eight hundred thirty-five".