635791067 has 2 divisors, whose sum is σ = 635791068. Its totient is φ = 635791066.

The previous prime is 635791049. The next prime is 635791069. The reversal of 635791067 is 760197536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 635791067 - 2⁶ = 635791003 is a prime.

Together with 635791069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (635791069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317895533 + 317895534.

It is an arithmetic number, because the mean of its divisors is an integer number (317895534).

Almost surely, 2^635791067 is an apocalyptic number.

635791067 is a deficient number, since it is larger than the sum of its proper divisors (1).

635791067 is an equidigital number, since it uses as much as digits as its factorization.

635791067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 635791067 is about 25214.8977194039. The cubic root of 635791067 is about 859.8805796862.

It can be divided in two parts, 63579 and 1067, that added together give a palindrome (64646).

The spelling of 635791067 in words is "six hundred thirty-five million, seven hundred ninety-one thousand, sixty-seven".