28047041 has 4 divisors (see below), whose sum is σ = 30596784. Its totient is φ = 25497300.

The previous prime is 28047037. The next prime is 28047043. The reversal of 28047041 is 14074082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28047041 - 2² = 28047037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28047041.

It is not an unprimeable number, because it can be changed into a prime (28047043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274855 + ... + 1274876.

It is an arithmetic number, because the mean of its divisors is an integer number (7649196).

Almost surely, 2^28047041 is an apocalyptic number.

It is an amenable number.

28047041 is a deficient number, since it is larger than the sum of its proper divisors (2549743).

28047041 is a wasteful number, since it uses less digits than its factorization.

28047041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549742.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 28047041 is about 5295.9457134680. The cubic root of 28047041 is about 303.8288546423.

The spelling of 28047041 in words is "twenty-eight million, forty-seven thousand, forty-one".