69438263 has 2 divisors, whose sum is σ = 69438264. Its totient is φ = 69438262.

The previous prime is 69438227. The next prime is 69438269. The reversal of 69438263 is 36283496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69438263 - 2⁸ = 69438007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69438263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69438269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34719131 + 34719132.

It is an arithmetic number, because the mean of its divisors is an integer number (34719132).

Almost surely, 2^69438263 is an apocalyptic number.

69438263 is a deficient number, since it is larger than the sum of its proper divisors (1).

69438263 is an equidigital number, since it uses as much as digits as its factorization.

69438263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 69438263 is about 8332.9624384129. The cubic root of 69438263 is about 411.0231495575.

The spelling of 69438263 in words is "sixty-nine million, four hundred thirty-eight thousand, two hundred sixty-three".