28200353 has 8 divisors (see below), whose sum is σ = 28504872. Its totient is φ = 27897856.

The previous prime is 28200349. The next prime is 28200379. The reversal of 28200353 is 35300282.

It can be written as a sum of positive squares in 4 ways, for example, as 14569489 + 13630864 = 3817^2 + 3692^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 28200353 - 2² = 28200349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28200853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50351 + ... + 50907.

It is an arithmetic number, because the mean of its divisors is an integer number (3563109).

Almost surely, 2^28200353 is an apocalyptic number.

It is an amenable number.

28200353 is a deficient number, since it is larger than the sum of its proper divisors (304519).

28200353 is a wasteful number, since it uses less digits than its factorization.

28200353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 28200353 is about 5310.4004557095. The cubic root of 28200353 is about 304.3814499826.

The spelling of 28200353 in words is "twenty-eight million, two hundred thousand, three hundred fifty-three".