634606436 has 6 divisors (see below), whose sum is σ = 1110561270. Its totient is φ = 317303216.

The previous prime is 634606417. The next prime is 634606457.

634606436 is nontrivially palindromic in base 10.

634606436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 338560000 + 296046436 = 18400^2 + 17206^2 .

It is a super-3 number, since 3×634606436³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 634606436.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79325801 + ... + 79325808.

It is an arithmetic number, because the mean of its divisors is an integer number (185093545).

Almost surely, 2^634606436 is an apocalyptic number.

It is an amenable number.

634606436 is a deficient number, since it is larger than the sum of its proper divisors (475954834).

634606436 is a wasteful number, since it uses less digits than its factorization.

634606436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158651613 (or 158651611 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 38.

The square root of 634606436 is about 25191.3960708810. The cubic root of 634606436 is about 859.3461931783.

It can be divided in two parts, 63460 and 6436, that added together give a palindrome (69896).

The spelling of 634606436 in words is "six hundred thirty-four million, six hundred six thousand, four hundred thirty-six".