634444969 has 2 divisors, whose sum is σ = 634444970. Its totient is φ = 634444968.

The previous prime is 634444901. The next prime is 634445003. The reversal of 634444969 is 969444436.

634444969 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., 459888025 + 174556944 = 21445^2 + 13212^2 .

It is a cyclic number.

It is not a de Polignac number, because 634444969 - 2²⁷ = 500227241 is a prime.

It is a super-3 number, since 3×634444969³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (634447969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317222484 + 317222485.

It is an arithmetic number, because the mean of its divisors is an integer number (317222485).

Almost surely, 2^634444969 is an apocalyptic number.

It is an amenable number.

634444969 is a deficient number, since it is larger than the sum of its proper divisors (1).

634444969 is an equidigital number, since it uses as much as digits as its factorization.

634444969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 49.

The square root of 634444969 is about 25188.1910624801. The cubic root of 634444969 is about 859.2733040018.

The spelling of 634444969 in words is "six hundred thirty-four million, four hundred forty-four thousand, nine hundred sixty-nine".