634497107 has 2 divisors, whose sum is σ = 634497108. Its totient is φ = 634497106.

The previous prime is 634497047. The next prime is 634497139. The reversal of 634497107 is 701794436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634497107 - 2⁶ = 634497043 is a prime.

It is not a weakly prime, because it can be changed into another prime (634497167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317248553 + 317248554.

It is an arithmetic number, because the mean of its divisors is an integer number (317248554).

Almost surely, 2^634497107 is an apocalyptic number.

634497107 is a deficient number, since it is larger than the sum of its proper divisors (1).

634497107 is an equidigital number, since it uses as much as digits as its factorization.

634497107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 634497107 is about 25189.2260103402. The cubic root of 634497107 is about 859.2968414067.

The spelling of 634497107 in words is "six hundred thirty-four million, four hundred ninety-seven thousand, one hundred seven".