634874386 has 8 divisors (see below), whose sum is σ = 970279884. Its totient is φ = 311447760.

The previous prime is 634874371. The next prime is 634874413. The reversal of 634874386 is 683478436.

634874386 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 2 ways, for example, as 537358761 + 97515625 = 23181^2 + 9875^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2994585 + ... + 2994796.

Almost surely, 2^634874386 is an apocalyptic number.

634874386 is a deficient number, since it is larger than the sum of its proper divisors (335405498).

634874386 is a wasteful number, since it uses less digits than its factorization.

634874386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5989436.

The product of its digits is 2322432, while the sum is 49.

The square root of 634874386 is about 25196.7137936676. The cubic root of 634874386 is about 859.4671234637.

The spelling of 634874386 in words is "six hundred thirty-four million, eight hundred seventy-four thousand, three hundred eighty-six".