28329826 has 16 divisors (see below), whose sum is σ = 48633984. Its totient is φ = 12124224.

The previous prime is 28329823. The next prime is 28329883. The reversal of 28329826 is 62892382.

It is not an unprimeable number, because it can be changed into a prime (28329823) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17466 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (3039624).

Almost surely, 2^28329826 is an apocalyptic number.

28329826 is a deficient number, since it is larger than the sum of its proper divisors (20304158).

28329826 is a wasteful number, since it uses less digits than its factorization.

28329826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865.

The product of its digits is 82944, while the sum is 40.

The square root of 28329826 is about 5322.5770074279. The cubic root of 28329826 is about 304.8465626148.

The spelling of 28329826 in words is "twenty-eight million, three hundred twenty-nine thousand, eight hundred twenty-six".