28650836 has 12 divisors (see below), whose sum is σ = 50447712. Its totient is φ = 14237208.

The previous prime is 28650833. The next prime is 28650887. The reversal of 28650836 is 63805682.

It is a self number, because there is not a number n which added to its sum of digits gives 28650836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28650833) 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 3 ways as a sum of consecutive naturals, for example, 21320 + ... + 22623.

It is an arithmetic number, because the mean of its divisors is an integer number (4203976).

Almost surely, 2^28650836 is an apocalyptic number.

It is an amenable number.

28650836 is a deficient number, since it is larger than the sum of its proper divisors (21796876).

28650836 is a wasteful number, since it uses less digits than its factorization.

28650836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44110 (or 44108 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 28650836 is about 5352.6475691941. The cubic root of 28650836 is about 305.9936632746.

The spelling of 28650836 in words is "twenty-eight million, six hundred fifty thousand, eight hundred thirty-six".