28386049 has 8 divisors (see below), whose sum is σ = 29469440. Its totient is φ = 27313200.

The previous prime is 28386047. The next prime is 28386077. The reversal of 28386049 is 94068382.

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 28386049 - 2¹ = 28386047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28386047) 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, 3082 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (3683680).

Almost surely, 2^28386049 is an apocalyptic number.

It is an amenable number.

28386049 is a deficient number, since it is larger than the sum of its proper divisors (1083391).

28386049 is a wasteful number, since it uses less digits than its factorization.

28386049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28386049 is about 5327.8559477523. The cubic root of 28386049 is about 305.0480941806.

The spelling of 28386049 in words is "twenty-eight million, three hundred eighty-six thousand, forty-nine".