634545497 has 2 divisors, whose sum is σ = 634545498. Its totient is φ = 634545496.

The previous prime is 634545473. The next prime is 634545547. The reversal of 634545497 is 794545436.

634545497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602407936 + 32137561 = 24544^2 + 5669^2 .

It is a cyclic number.

It is not a de Polignac number, because 634545497 - 2¹⁰ = 634544473 is a prime.

It is a super-3 number, since 3×634545497³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (634545407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317272748 + 317272749.

It is an arithmetic number, because the mean of its divisors is an integer number (317272749).

Almost surely, 2^634545497 is an apocalyptic number.

It is an amenable number.

634545497 is a deficient number, since it is larger than the sum of its proper divisors (1).

634545497 is an equidigital number, since it uses as much as digits as its factorization.

634545497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 47.

The square root of 634545497 is about 25190.1865217390. The cubic root of 634545497 is about 859.3186856445.

The spelling of 634545497 in words is "six hundred thirty-four million, five hundred forty-five thousand, four hundred ninety-seven".