28061602 has 8 divisors (see below), whose sum is σ = 42187500. Its totient is φ = 13999104.

The previous prime is 28061599. The next prime is 28061623. The reversal of 28061602 is 20616082.

It can be written as a sum of positive squares in 2 ways, for example, as 27573001 + 488601 = 5251^2 + 699^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14727 + ... + 16522.

Almost surely, 2^28061602 is an apocalyptic number.

28061602 is a deficient number, since it is larger than the sum of its proper divisors (14125898).

28061602 is a wasteful number, since it uses less digits than its factorization.

28061602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31700.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28061602 is about 5297.3202659458. The cubic root of 28061602 is about 303.8814244965.

Adding to 28061602 its reverse (20616082), we get a palindrome (48677684).

The spelling of 28061602 in words is "twenty-eight million, sixty-one thousand, six hundred two".