268695437 has 2 divisors, whose sum is σ = 268695438. Its totient is φ = 268695436.

The previous prime is 268695409. The next prime is 268695457. The reversal of 268695437 is 734596862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140801956 + 127893481 = 11866^2 + 11309^2 .

It is a cyclic number.

It is not a de Polignac number, because 268695437 - 2¹⁸ = 268433293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268695457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134347718 + 134347719.

It is an arithmetic number, because the mean of its divisors is an integer number (134347719).

Almost surely, 2^268695437 is an apocalyptic number.

It is an amenable number.

268695437 is a deficient number, since it is larger than the sum of its proper divisors (1).

268695437 is an equidigital number, since it uses as much as digits as its factorization.

268695437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 268695437 is about 16391.9320703815. The cubic root of 268695437 is about 645.2877645509.

The spelling of 268695437 in words is "two hundred sixty-eight million, six hundred ninety-five thousand, four hundred thirty-seven".