28489802 has 32 divisors (see below), whose sum is σ = 48522240. Its totient is φ = 12432880.

The previous prime is 28489789. The next prime is 28489817. The reversal of 28489802 is 20898482.

It is a self number, because there is not a number n which added to its sum of digits gives 28489802.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60773 + ... + 61239.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^28489802 is an apocalyptic number.

28489802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28489802 is a deficient number, since it is larger than the sum of its proper divisors (20032438).

28489802 is a wasteful number, since it uses less digits than its factorization.

28489802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 28489802 is about 5337.5839103475. The cubic root of 28489802 is about 305.4192996797.

The spelling of 28489802 in words is "twenty-eight million, four hundred eighty-nine thousand, eight hundred two".