28200968 has 16 divisors (see below), whose sum is σ = 53215980. Its totient is φ = 14010048.

The previous prime is 28200961. The next prime is 28200973. The reversal of 28200968 is 86900282.

It can be written as a sum of positive squares in 2 ways, for example, as 25180324 + 3020644 = 5018^2 + 1738^2 .

It is a super-2 number, since 2×28200968² = 1590589192274048, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28200961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9971 + ... + 12482.

Almost surely, 2^28200968 is an apocalyptic number.

It is an amenable number.

28200968 is a deficient number, since it is larger than the sum of its proper divisors (25015012).

28200968 is a wasteful number, since it uses less digits than its factorization.

28200968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22616 (or 22612 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 28200968 is about 5310.4583606314. The cubic root of 28200968 is about 304.3836626408.

The spelling of 28200968 in words is "twenty-eight million, two hundred thousand, nine hundred sixty-eight".