28561068 has 36 divisors (see below), whose sum is σ = 72949240. Its totient is φ = 9421056.

The previous prime is 28561067. The next prime is 28561069. The reversal of 28561068 is 86016582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28561067) and next prime (28561069).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28561063) 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, 598 + ... + 7581.

Almost surely, 2^28561068 is an apocalyptic number.

It is an amenable number.

28561068 is an abundant number, since it is smaller than the sum of its proper divisors (44388172).

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

28561068 is a wasteful number, since it uses less digits than its factorization.

28561068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28561068 is about 5344.2556076595. The cubic root of 28561068 is about 305.6737519930.

The spelling of 28561068 in words is "twenty-eight million, five hundred sixty-one thousand, sixty-eight".