8369641429 has 2 divisors, whose sum is σ = 8369641430. Its totient is φ = 8369641428.

The previous prime is 8369641393. The next prime is 8369641447. The reversal of 8369641429 is 9241469638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6075423025 + 2294218404 = 77945^2 + 47898^2 .

It is a cyclic number.

It is not a de Polignac number, because 8369641429 - 2¹¹ = 8369639381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8369641459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184820714 + 4184820715.

It is an arithmetic number, because the mean of its divisors is an integer number (4184820715).

Almost surely, 2^8369641429 is an apocalyptic number.

It is an amenable number.

8369641429 is a deficient number, since it is larger than the sum of its proper divisors (1).

8369641429 is an equidigital number, since it uses as much as digits as its factorization.

8369641429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 52.

The square root of 8369641429 is about 91485.7444031582. The cubic root of 8369641429 is about 2030.3408415206.

The spelling of 8369641429 in words is "eight billion, three hundred sixty-nine million, six hundred forty-one thousand, four hundred twenty-nine".