635246897 has 2 divisors, whose sum is σ = 635246898. Its totient is φ = 635246896.

The previous prime is 635246861. The next prime is 635246917. The reversal of 635246897 is 798642536.

It is a happy number.

635246897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527896576 + 107350321 = 22976^2 + 10361^2 .

It is a cyclic number.

It is not a de Polignac number, because 635246897 - 2¹² = 635242801 is a prime.

It is not a weakly prime, because it can be changed into another prime (635246197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317623448 + 317623449.

It is an arithmetic number, because the mean of its divisors is an integer number (317623449).

Almost surely, 2^635246897 is an apocalyptic number.

It is an amenable number.

635246897 is a deficient number, since it is larger than the sum of its proper divisors (1).

635246897 is an equidigital number, since it uses as much as digits as its factorization.

635246897 is an odious number, because the sum of its binary digits is odd.

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

The square root of 635246897 is about 25204.1047648989. The cubic root of 635246897 is about 859.6351873449.

The spelling of 635246897 in words is "six hundred thirty-five million, two hundred forty-six thousand, eight hundred ninety-seven".