28047033 has 32 divisors (see below), whose sum is σ = 49029120. Its totient is φ = 15506640.

The previous prime is 28047029. The next prime is 28047037. The reversal of 28047033 is 33074082.

It is an interprime number because it is at equal distance from previous prime (28047029) and next prime (28047037).

It is not a de Polignac number, because 28047033 - 2² = 28047029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 28046988 and 28047006.

It is not an unprimeable number, because it can be changed into a prime (28047037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3466 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (1532160).

Almost surely, 2^28047033 is an apocalyptic number.

It is an amenable number.

28047033 is a deficient number, since it is larger than the sum of its proper divisors (20982087).

28047033 is a wasteful number, since it uses less digits than its factorization.

28047033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 28047033 is about 5295.9449581732. The cubic root of 28047033 is about 303.8288257547.

The spelling of 28047033 in words is "twenty-eight million, forty-seven thousand, thirty-three".