269448643 has 2 divisors, whose sum is σ = 269448644. Its totient is φ = 269448642.

The previous prime is 269448631. The next prime is 269448659. The reversal of 269448643 is 346844962.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269448643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 269448593 and 269448602.

It is not a weakly prime, because it can be changed into another prime (269848643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134724321 + 134724322.

It is an arithmetic number, because the mean of its divisors is an integer number (134724322).

Almost surely, 2^269448643 is an apocalyptic number.

269448643 is a deficient number, since it is larger than the sum of its proper divisors (1).

269448643 is an equidigital number, since it uses as much as digits as its factorization.

269448643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 46.

The square root of 269448643 is about 16414.8908921138. The cubic root of 269448643 is about 645.8901580728.

The spelling of 269448643 in words is "two hundred sixty-nine million, four hundred forty-eight thousand, six hundred forty-three".