268473853 has 2 divisors, whose sum is σ = 268473854. Its totient is φ = 268473852.

The previous prime is 268473841. The next prime is 268473883. The reversal of 268473853 is 358374862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254657764 + 13816089 = 15958^2 + 3717^2 .

It is a cyclic number.

It is not a de Polignac number, because 268473853 - 2¹³ = 268465661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268473883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134236926 + 134236927.

It is an arithmetic number, because the mean of its divisors is an integer number (134236927).

Almost surely, 2^268473853 is an apocalyptic number.

It is an amenable number.

268473853 is a deficient number, since it is larger than the sum of its proper divisors (1).

268473853 is an equidigital number, since it uses as much as digits as its factorization.

268473853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 268473853 is about 16385.1717415473. The cubic root of 268473853 is about 645.1103334679.

The spelling of 268473853 in words is "two hundred sixty-eight million, four hundred seventy-three thousand, eight hundred fifty-three".