268643701 has 2 divisors, whose sum is σ = 268643702. Its totient is φ = 268643700.

The previous prime is 268643671. The next prime is 268643729. The reversal of 268643701 is 107346862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200250801 + 68392900 = 14151^2 + 8270^2 .

It is a cyclic number.

It is not a de Polignac number, because 268643701 - 2⁹ = 268643189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268643761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134321850 + 134321851.

It is an arithmetic number, because the mean of its divisors is an integer number (134321851).

Almost surely, 2^268643701 is an apocalyptic number.

It is an amenable number.

268643701 is a deficient number, since it is larger than the sum of its proper divisors (1).

268643701 is an equidigital number, since it uses as much as digits as its factorization.

268643701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 268643701 is about 16390.3539009992. The cubic root of 268643701 is about 645.2463462186.

The spelling of 268643701 in words is "two hundred sixty-eight million, six hundred forty-three thousand, seven hundred one".