28633037 has 2 divisors, whose sum is σ = 28633038. Its totient is φ = 28633036.

The previous prime is 28633021. The next prime is 28633043. The reversal of 28633037 is 73033682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23222761 + 5410276 = 4819^2 + 2326^2 .

It is a cyclic number.

It is not a de Polignac number, because 28633037 - 2⁴ = 28633021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28632994 and 28633012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28633067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14316518 + 14316519.

It is an arithmetic number, because the mean of its divisors is an integer number (14316519).

Almost surely, 2^28633037 is an apocalyptic number.

It is an amenable number.

28633037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28633037 is an equidigital number, since it uses as much as digits as its factorization.

28633037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 28633037 is about 5350.9846757396. The cubic root of 28633037 is about 305.9302851421.

The spelling of 28633037 in words is "twenty-eight million, six hundred thirty-three thousand, thirty-seven".