28751033 has 2 divisors, whose sum is σ = 28751034. Its totient is φ = 28751032.

The previous prime is 28751027. The next prime is 28751053. The reversal of 28751033 is 33015782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22733824 + 6017209 = 4768^2 + 2453^2 .

It is a cyclic number.

It is not a de Polignac number, because 28751033 - 2¹² = 28746937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28750987 and 28751005.

It is not a weakly prime, because it can be changed into another prime (28751003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14375516 + 14375517.

It is an arithmetic number, because the mean of its divisors is an integer number (14375517).

Almost surely, 2^28751033 is an apocalyptic number.

It is an amenable number.

28751033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28751033 is an equidigital number, since it uses as much as digits as its factorization.

28751033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 28751033 is about 5361.9989742632. The cubic root of 28751033 is about 306.3499527692.

The spelling of 28751033 in words is "twenty-eight million, seven hundred fifty-one thousand, thirty-three".