263628803 has 2 divisors, whose sum is σ = 263628804. Its totient is φ = 263628802.

The previous prime is 263628797. The next prime is 263628863. The reversal of 263628803 is 308826362.

It is a happy number.

263628803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263628803 - 2¹⁸ = 263366659 is a prime.

It is not a weakly prime, because it can be changed into another prime (263628863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131814401 + 131814402.

It is an arithmetic number, because the mean of its divisors is an integer number (131814402).

Almost surely, 2^263628803 is an apocalyptic number.

263628803 is a deficient number, since it is larger than the sum of its proper divisors (1).

263628803 is an equidigital number, since it uses as much as digits as its factorization.

263628803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 263628803 is about 16236.6499931482. The cubic root of 263628803 is about 641.2060615588.

The spelling of 263628803 in words is "two hundred sixty-three million, six hundred twenty-eight thousand, eight hundred three".