28905041 has 8 divisors (see below), whose sum is σ = 32302368. Its totient is φ = 25636000.

The previous prime is 28904977. The next prime is 28905053. The reversal of 28905041 is 14050982.

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 28905041 - 2⁶ = 28904977 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 = 28904995 and 28905013.

It is not an unprimeable number, because it can be changed into a prime (28905241) 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, 31595 + ... + 32496.

It is an arithmetic number, because the mean of its divisors is an integer number (4037796).

Almost surely, 2^28905041 is an apocalyptic number.

It is an amenable number.

28905041 is a deficient number, since it is larger than the sum of its proper divisors (3397327).

28905041 is a wasteful number, since it uses less digits than its factorization.

28905041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64143.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 28905041 is about 5376.3408560098. The cubic root of 28905041 is about 306.8959778011.

The spelling of 28905041 in words is "twenty-eight million, nine hundred five thousand, forty-one".