28900343 has 8 divisors (see below), whose sum is σ = 29774976. Its totient is φ = 28035000.

The previous prime is 28900321. The next prime is 28900363. The reversal of 28900343 is 34300982.

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 28900343 - 2¹⁰ = 28899319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28900363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268 + ... + 8718.

It is an arithmetic number, because the mean of its divisors is an integer number (3721872).

Almost surely, 2^28900343 is an apocalyptic number.

28900343 is a deficient number, since it is larger than the sum of its proper divisors (874633).

28900343 is a wasteful number, since it uses less digits than its factorization.

28900343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 28900343 is about 5375.9039239927. The cubic root of 28900343 is about 306.8793500738.

The spelling of 28900343 in words is "twenty-eight million, nine hundred thousand, three hundred forty-three".