28395826 has 8 divisors (see below), whose sum is σ = 42616620. Its totient is φ = 14190288.

The previous prime is 28395799. The next prime is 28395841. The reversal of 28395826 is 62859382.

It can be written as a sum of positive squares in 2 ways, for example, as 28037025 + 358801 = 5295^2 + 599^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260 + ... + 8656.

Almost surely, 2^28395826 is an apocalyptic number.

28395826 is a deficient number, since it is larger than the sum of its proper divisors (14220794).

28395826 is a wasteful number, since it uses less digits than its factorization.

28395826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628.

The product of its digits is 207360, while the sum is 43.

The square root of 28395826 is about 5328.7734048278. The cubic root of 28395826 is about 305.0831127076.

The spelling of 28395826 in words is "twenty-eight million, three hundred ninety-five thousand, eight hundred twenty-six".