268634479 has 4 divisors (see below), whose sum is σ = 268823376. Its totient is φ = 268445584.

The previous prime is 268634461. The next prime is 268634537. The reversal of 268634479 is 974436862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268634479 - 2⁷ = 268634351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268634879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92299 + ... + 95164.

It is an arithmetic number, because the mean of its divisors is an integer number (67205844).

Almost surely, 2^268634479 is an apocalyptic number.

268634479 is a deficient number, since it is larger than the sum of its proper divisors (188897).

268634479 is a wasteful number, since it uses less digits than its factorization.

268634479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188896.

The product of its digits is 1741824, while the sum is 49.

The square root of 268634479 is about 16390.0725745800. The cubic root of 268634479 is about 645.2389627960.

The spelling of 268634479 in words is "two hundred sixty-eight million, six hundred thirty-four thousand, four hundred seventy-nine".