268723901 has 4 divisors (see below), whose sum is σ = 268875900. Its totient is φ = 268571904.

The previous prime is 268723891. The next prime is 268723921. The reversal of 268723901 is 109327862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 196728676 + 71995225 = 14026^2 + 8485^2 .

It is a cyclic number.

It is not a de Polignac number, because 268723901 - 2¹⁰ = 268722877 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 (268723921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73316 + ... + 76893.

It is an arithmetic number, because the mean of its divisors is an integer number (67218975).

Almost surely, 2^268723901 is an apocalyptic number.

It is an amenable number.

268723901 is a deficient number, since it is larger than the sum of its proper divisors (151999).

268723901 is a wasteful number, since it uses less digits than its factorization.

268723901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151998.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 268723901 is about 16392.8002793909. The cubic root of 268723901 is about 645.3105497317.

The spelling of 268723901 in words is "two hundred sixty-eight million, seven hundred twenty-three thousand, nine hundred one".