28634503 has 2 divisors, whose sum is σ = 28634504. Its totient is φ = 28634502.

The previous prime is 28634491. The next prime is 28634509. The reversal of 28634503 is 30543682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28634503 - 2²¹ = 26537351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28634509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14317251 + 14317252.

It is an arithmetic number, because the mean of its divisors is an integer number (14317252).

Almost surely, 2^28634503 is an apocalyptic number.

28634503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28634503 is an equidigital number, since it uses as much as digits as its factorization.

28634503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 28634503 is about 5351.1216581199. The cubic root of 28634503 is about 305.9355062223.

The spelling of 28634503 in words is "twenty-eight million, six hundred thirty-four thousand, five hundred three".