28489846 has 16 divisors (see below), whose sum is σ = 53280000. Its totient is φ = 11099880.

The previous prime is 28489831. The next prime is 28489859. The reversal of 28489846 is 64898482.

It is a self number, because there is not a number n which added to its sum of digits gives 28489846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92346 + ... + 92653.

It is an arithmetic number, because the mean of its divisors is an integer number (3330000).

Almost surely, 2^28489846 is an apocalyptic number.

28489846 is a deficient number, since it is larger than the sum of its proper divisors (24790154).

28489846 is a wasteful number, since it uses less digits than its factorization.

28489846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185019.

The product of its digits is 884736, while the sum is 49.

The square root of 28489846 is about 5337.5880320609. The cubic root of 28489846 is about 305.4194569107.

It can be divided in two parts, 2 and 8489846, that added together give a palindrome (8489848).

The spelling of 28489846 in words is "twenty-eight million, four hundred eighty-nine thousand, eight hundred forty-six".