28604417 has 8 divisors (see below), whose sum is σ = 29547936. Its totient is φ = 27673632.

The previous prime is 28604371. The next prime is 28604423. The reversal of 28604417 is 71440682.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28604417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28604447) 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, 1493 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (3693492).

Almost surely, 2^28604417 is an apocalyptic number.

It is an amenable number.

28604417 is a deficient number, since it is larger than the sum of its proper divisors (943519).

28604417 is a wasteful number, since it uses less digits than its factorization.

28604417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28604417 is about 5348.3097329904. The cubic root of 28604417 is about 305.8283208316.

The spelling of 28604417 in words is "twenty-eight million, six hundred four thousand, four hundred seventeen".