28934453 has 2 divisors, whose sum is σ = 28934454. Its totient is φ = 28934452.

The previous prime is 28934413. The next prime is 28934491. The reversal of 28934453 is 35443982.

It is an a-pointer prime, because the next prime (28934491) can be obtained adding 28934453 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20857489 + 8076964 = 4567^2 + 2842^2 .

It is a cyclic number.

It is not a de Polignac number, because 28934453 - 2⁸ = 28934197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28934413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14467226 + 14467227.

It is an arithmetic number, because the mean of its divisors is an integer number (14467227).

Almost surely, 2^28934453 is an apocalyptic number.

It is an amenable number.

28934453 is a deficient number, since it is larger than the sum of its proper divisors (1).

28934453 is an equidigital number, since it uses as much as digits as its factorization.

28934453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 28934453 is about 5379.0754781840. The cubic root of 28934453 is about 307.0000353673. Note that the first 4 decimals are identical.

The spelling of 28934453 in words is "twenty-eight million, nine hundred thirty-four thousand, four hundred fifty-three".