28050808 has 8 divisors (see below), whose sum is σ = 52595280. Its totient is φ = 14025400.

The previous prime is 28050769. The next prime is 28050811. The reversal of 28050808 is 80805082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 28050808.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1753168 + ... + 1753183.

It is an arithmetic number, because the mean of its divisors is an integer number (6574410).

Almost surely, 2^28050808 is an apocalyptic number.

It is an amenable number.

28050808 is a deficient number, since it is larger than the sum of its proper divisors (24544472).

28050808 is a wasteful number, since it uses less digits than its factorization.

28050808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506357 (or 3506353 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 28050808 is about 5296.3013509429. The cubic root of 28050808 is about 303.8424564581.

The spelling of 28050808 in words is "twenty-eight million, fifty thousand, eight hundred eight".