69538943 has 2 divisors, whose sum is σ = 69538944. Its totient is φ = 69538942.

The previous prime is 69538927. The next prime is 69538951. The reversal of 69538943 is 34983596.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69538943 - 2⁴ = 69538927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69534943) 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, 34769471 + 34769472.

It is an arithmetic number, because the mean of its divisors is an integer number (34769472).

Almost surely, 2^69538943 is an apocalyptic number.

69538943 is a deficient number, since it is larger than the sum of its proper divisors (1).

69538943 is an equidigital number, since it uses as much as digits as its factorization.

69538943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The square root of 69538943 is about 8339.0013191029. The cubic root of 69538943 is about 411.2217039994.

The spelling of 69538943 in words is "sixty-nine million, five hundred thirty-eight thousand, nine hundred forty-three".