28504746 has 24 divisors (see below), whose sum is σ = 61910784. Its totient is φ = 9478440.

The previous prime is 28504741. The next prime is 28504747. The reversal of 28504746 is 64740582.

It is a self number, because there is not a number n which added to its sum of digits gives 28504746.

It is not an unprimeable number, because it can be changed into a prime (28504741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6711 + ... + 10101.

It is an arithmetic number, because the mean of its divisors is an integer number (2579616).

Almost surely, 2^28504746 is an apocalyptic number.

28504746 is an abundant number, since it is smaller than the sum of its proper divisors (33406038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28504746 is a wasteful number, since it uses less digits than its factorization.

28504746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866 (or 3863 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 28504746 is about 5338.9836111380. The cubic root of 28504746 is about 305.4726917462.

The spelling of 28504746 in words is "twenty-eight million, five hundred four thousand, seven hundred forty-six".