634969436 has 24 divisors (see below), whose sum is σ = 1194574080. Its totient is φ = 294373872.

The previous prime is 634969427. The next prime is 634969453.

It is a happy number.

634969436 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85310 + ... + 92453.

It is an arithmetic number, because the mean of its divisors is an integer number (49773920).

Almost surely, 2^634969436 is an apocalyptic number.

It is an amenable number.

634969436 is a deficient number, since it is larger than the sum of its proper divisors (559604644).

634969436 is a wasteful number, since it uses less digits than its factorization.

634969436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177833 (or 177831 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 50.

The square root of 634969436 is about 25198.5998817395. The cubic root of 634969436 is about 859.5100129315.

The spelling of 634969436 in words is "six hundred thirty-four million, nine hundred sixty-nine thousand, four hundred thirty-six".