28561002 has 8 divisors (see below), whose sum is σ = 57122016. Its totient is φ = 9520332.

The previous prime is 28560989. The next prime is 28561019. The reversal of 28561002 is 20016582.

It is a sphenic number, since it is the product of 3 distinct primes.

28561002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380078 + ... + 2380089.

It is an arithmetic number, because the mean of its divisors is an integer number (7140252).

Almost surely, 2^28561002 is an apocalyptic number.

28561002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28561002 is a wasteful number, since it uses less digits than its factorization.

28561002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760172.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 28561002 is about 5344.2494328016. The cubic root of 28561002 is about 305.6735165387.

Adding to 28561002 its reverse (20016582), we get a palindrome (48577584).

The spelling of 28561002 in words is "twenty-eight million, five hundred sixty-one thousand, two".