28563950 has 12 divisors (see below), whose sum is σ = 53129040. Its totient is φ = 11425560.

The previous prime is 28563947. The next prime is 28563959. The reversal of 28563950 is 5936582.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28563959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285590 + ... + 285689.

It is an arithmetic number, because the mean of its divisors is an integer number (4427420).

Almost surely, 2^28563950 is an apocalyptic number.

28563950 is a deficient number, since it is larger than the sum of its proper divisors (24565090).

28563950 is a wasteful number, since it uses less digits than its factorization.

28563950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571291 (or 571286 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 28563950 is about 5344.5252361646. The cubic root of 28563950 is about 305.6840331460.

The spelling of 28563950 in words is "twenty-eight million, five hundred sixty-three thousand, nine hundred fifty".