3238943969 has 2 divisors, whose sum is σ = 3238943970. Its totient is φ = 3238943968.

The previous prime is 3238943963. The next prime is 3238943987. The reversal of 3238943969 is 9693498323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3170253025 + 68690944 = 56305^2 + 8288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3238943969 is a prime.

It is a super-2 number, since 2×3238943969² = 20981516068642945922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3238943963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619471984 + 1619471985.

It is an arithmetic number, because the mean of its divisors is an integer number (1619471985).

Almost surely, 2^3238943969 is an apocalyptic number.

It is an amenable number.

3238943969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3238943969 is an equidigital number, since it uses as much as digits as its factorization.

3238943969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 56.

The square root of 3238943969 is about 56911.7208402628. The cubic root of 3238943969 is about 1479.5664619187.

The spelling of 3238943969 in words is "three billion, two hundred thirty-eight million, nine hundred forty-three thousand, nine hundred sixty-nine".