28984207 has 8 divisors (see below), whose sum is σ = 33174432. Its totient is φ = 24806400.

The previous prime is 28984187. The next prime is 28984223. The reversal of 28984207 is 70248982.

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 28984207 - 2¹¹ = 28982159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28984207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28984237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607 + ... + 8047.

It is an arithmetic number, because the mean of its divisors is an integer number (4146804).

Almost surely, 2^28984207 is an apocalyptic number.

28984207 is a deficient number, since it is larger than the sum of its proper divisors (4190225).

28984207 is an equidigital number, since it uses as much as digits as its factorization.

28984207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 28984207 is about 5383.6982642046. The cubic root of 28984207 is about 307.1759010625.

The spelling of 28984207 in words is "twenty-eight million, nine hundred eighty-four thousand, two hundred seven".