28800745 has 8 divisors (see below), whose sum is σ = 34597440. Its totient is φ = 23016240.

The previous prime is 28800721. The next prime is 28800749. The reversal of 28800745 is 54700882.

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

It is not a de Polignac number, because 28800745 - 2¹³ = 28792553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28800745.

It is not an unprimeable number, because it can be changed into a prime (28800749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3396 + ... + 8314.

It is an arithmetic number, because the mean of its divisors is an integer number (4324680).

Almost surely, 2^28800745 is an apocalyptic number.

It is an amenable number.

28800745 is a deficient number, since it is larger than the sum of its proper divisors (5796695).

28800745 is a wasteful number, since it uses less digits than its factorization.

28800745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28800745 is about 5366.6325568274. The cubic root of 28800745 is about 306.5264159926.

The spelling of 28800745 in words is "twenty-eight million, eight hundred thousand, seven hundred forty-five".