634929413 has 8 divisors (see below), whose sum is σ = 672647832. Its totient is φ = 597252096.

The previous prime is 634929409. The next prime is 634929433. The reversal of 634929413 is 314929436.

It can be written as a sum of positive squares in 4 ways, for example, as 212955649 + 421973764 = 14593^2 + 20542^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634929413 - 2² = 634929409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634929433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25031 + ... + 43547.

It is an arithmetic number, because the mean of its divisors is an integer number (84080979).

Almost surely, 2^634929413 is an apocalyptic number.

It is an amenable number.

634929413 is a deficient number, since it is larger than the sum of its proper divisors (37718419).

634929413 is a wasteful number, since it uses less digits than its factorization.

634929413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20551.

The product of its digits is 139968, while the sum is 41.

The square root of 634929413 is about 25197.8057179589. The cubic root of 634929413 is about 859.4919538512.

The spelling of 634929413 in words is "six hundred thirty-four million, nine hundred twenty-nine thousand, four hundred thirteen".