28604741 has 8 divisors (see below), whose sum is σ = 31243968. Its totient is φ = 25972000.

The previous prime is 28604729. The next prime is 28604749. The reversal of 28604741 is 14740682.

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 28604741 - 2¹⁰ = 28603717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28604698 and 28604707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28604749) 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, 15761 + ... + 17481.

It is an arithmetic number, because the mean of its divisors is an integer number (3905496).

Almost surely, 2^28604741 is an apocalyptic number.

It is an amenable number.

28604741 is a deficient number, since it is larger than the sum of its proper divisors (2639227).

28604741 is a wasteful number, since it uses less digits than its factorization.

28604741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243.

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

The square root of 28604741 is about 5348.3400228482. The cubic root of 28604741 is about 305.8294755251.

The spelling of 28604741 in words is "twenty-eight million, six hundred four thousand, seven hundred forty-one".