268621007 has 2 divisors, whose sum is σ = 268621008. Its totient is φ = 268621006.

The previous prime is 268620991. The next prime is 268621019. The reversal of 268621007 is 700126862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268621007 - 2⁴ = 268620991 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 (268621207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134310503 + 134310504.

It is an arithmetic number, because the mean of its divisors is an integer number (134310504).

Almost surely, 2^268621007 is an apocalyptic number.

268621007 is a deficient number, since it is larger than the sum of its proper divisors (1).

268621007 is an equidigital number, since it uses as much as digits as its factorization.

268621007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 268621007 is about 16389.6615889408. The cubic root of 268621007 is about 645.2281763863.

Adding to 268621007 its reverse (700126862), we get a palindrome (968747869).

The spelling of 268621007 in words is "two hundred sixty-eight million, six hundred twenty-one thousand, seven".