69996643 has 2 divisors, whose sum is σ = 69996644. Its totient is φ = 69996642.

The previous prime is 69996629. The next prime is 69996649. The reversal of 69996643 is 34669996.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69996643 - 2¹⁷ = 69865571 is a prime.

It is not a weakly prime, because it can be changed into another prime (69996649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34998321 + 34998322.

It is an arithmetic number, because the mean of its divisors is an integer number (34998322).

Almost surely, 2^69996643 is an apocalyptic number.

69996643 is a deficient number, since it is larger than the sum of its proper divisors (1).

69996643 is an equidigital number, since it uses as much as digits as its factorization.

69996643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1889568, while the sum is 52.

The square root of 69996643 is about 8366.3996438133. The cubic root of 69996643 is about 412.1219417066.

The spelling of 69996643 in words is "sixty-nine million, nine hundred ninety-six thousand, six hundred forty-three".