28528433 has 2 divisors, whose sum is σ = 28528434. Its totient is φ = 28528432.

The previous prime is 28528427. The next prime is 28528457. The reversal of 28528433 is 33482582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27793984 + 734449 = 5272^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 28528433 - 2¹⁴ = 28512049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28528393 and 28528402.

It is not a weakly prime, because it can be changed into another prime (28528733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14264216 + 14264217.

It is an arithmetic number, because the mean of its divisors is an integer number (14264217).

Almost surely, 2^28528433 is an apocalyptic number.

It is an amenable number.

28528433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28528433 is an equidigital number, since it uses as much as digits as its factorization.

28528433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 35.

The square root of 28528433 is about 5341.2014566013. The cubic root of 28528433 is about 305.5572826691.

The spelling of 28528433 in words is "twenty-eight million, five hundred twenty-eight thousand, four hundred thirty-three".