268472447 has 2 divisors, whose sum is σ = 268472448. Its totient is φ = 268472446.

The previous prime is 268472423. The next prime is 268472453. The reversal of 268472447 is 744274862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268472447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268472398 and 268472407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268472467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134236223 + 134236224.

It is an arithmetic number, because the mean of its divisors is an integer number (134236224).

Almost surely, 2^268472447 is an apocalyptic number.

268472447 is a deficient number, since it is larger than the sum of its proper divisors (1).

268472447 is an equidigital number, since it uses as much as digits as its factorization.

268472447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 602112, while the sum is 44.

The square root of 268472447 is about 16385.1288368447. The cubic root of 268472447 is about 645.1092073164.

The spelling of 268472447 in words is "two hundred sixty-eight million, four hundred seventy-two thousand, four hundred forty-seven".