635955097 has 2 divisors, whose sum is σ = 635955098. Its totient is φ = 635955096.

The previous prime is 635955071. The next prime is 635955101. The reversal of 635955097 is 790559536.

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., 534025881 + 101929216 = 23109^2 + 10096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-635955097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 635955097.

It is not a weakly prime, because it can be changed into another prime (635955017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317977548 + 317977549.

It is an arithmetic number, because the mean of its divisors is an integer number (317977549).

Almost surely, 2^635955097 is an apocalyptic number.

It is an amenable number.

635955097 is a deficient number, since it is larger than the sum of its proper divisors (1).

635955097 is an equidigital number, since it uses as much as digits as its factorization.

635955097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1275750, while the sum is 49.

The square root of 635955097 is about 25218.1501502390. The cubic root of 635955097 is about 859.9545212114.

The spelling of 635955097 in words is "six hundred thirty-five million, nine hundred fifty-five thousand, ninety-seven".