28955603 has 2 divisors, whose sum is σ = 28955604. Its totient is φ = 28955602.

The previous prime is 28955599. The next prime is 28955621. The reversal of 28955603 is 30655982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28955603 - 2² = 28955599 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28955623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14477801 + 14477802.

It is an arithmetic number, because the mean of its divisors is an integer number (14477802).

Almost surely, 2^28955603 is an apocalyptic number.

28955603 is a deficient number, since it is larger than the sum of its proper divisors (1).

28955603 is an equidigital number, since it uses as much as digits as its factorization.

28955603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 28955603 is about 5381.0410702763. The cubic root of 28955603 is about 307.0748189863.

The spelling of 28955603 in words is "twenty-eight million, nine hundred fifty-five thousand, six hundred three".