28507033 has 2 divisors, whose sum is σ = 28507034. Its totient is φ = 28507032.

The previous prime is 28507027. The next prime is 28507109. The reversal of 28507033 is 33070582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23068809 + 5438224 = 4803^2 + 2332^2 .

It is a cyclic number.

It is not a de Polignac number, because 28507033 - 2¹⁷ = 28375961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28506992 and 28507010.

It is not a weakly prime, because it can be changed into another prime (28507433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14253516 + 14253517.

It is an arithmetic number, because the mean of its divisors is an integer number (14253517).

Almost surely, 2^28507033 is an apocalyptic number.

It is an amenable number.

28507033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28507033 is an equidigital number, since it uses as much as digits as its factorization.

28507033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 28507033 is about 5339.1977861847. The cubic root of 28507033 is about 305.4808611152.

The spelling of 28507033 in words is "twenty-eight million, five hundred seven thousand, thirty-three".