634618463 has 2 divisors, whose sum is σ = 634618464. Its totient is φ = 634618462.

The previous prime is 634618433. The next prime is 634618471. The reversal of 634618463 is 364816436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634618463 - 2¹⁴ = 634602079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634618463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634618403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317309231 + 317309232.

It is an arithmetic number, because the mean of its divisors is an integer number (317309232).

Almost surely, 2^634618463 is an apocalyptic number.

634618463 is a deficient number, since it is larger than the sum of its proper divisors (1).

634618463 is an equidigital number, since it uses as much as digits as its factorization.

634618463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 41.

The square root of 634618463 is about 25191.6347822050. The cubic root of 634618463 is about 859.3516218927.

The spelling of 634618463 in words is "six hundred thirty-four million, six hundred eighteen thousand, four hundred sixty-three".