28933301 has 2 divisors, whose sum is σ = 28933302. Its totient is φ = 28933300.

The previous prime is 28933273. The next prime is 28933321. The reversal of 28933301 is 10333982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15792676 + 13140625 = 3974^2 + 3625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28933301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28933321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14466650 + 14466651.

It is an arithmetic number, because the mean of its divisors is an integer number (14466651).

Almost surely, 2^28933301 is an apocalyptic number.

It is an amenable number.

28933301 is a deficient number, since it is larger than the sum of its proper divisors (1).

28933301 is an equidigital number, since it uses as much as digits as its factorization.

28933301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 28933301 is about 5378.9683955197. The cubic root of 28933301 is about 306.9959610004.

The spelling of 28933301 in words is "twenty-eight million, nine hundred thirty-three thousand, three hundred one".