68634344 has 16 divisors (see below), whose sum is σ = 129245220. Its totient is φ = 34168960.

The previous prime is 68634343. The next prime is 68634361. The reversal of 68634344 is 44343686.

It can be written as a sum of positive squares in 2 ways, for example, as 64480900 + 4153444 = 8030^2 + 2038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68634298 and 68634307.

It is not an unprimeable number, because it can be changed into a prime (68634343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16547 + ... + 20274.

Almost surely, 2^68634344 is an apocalyptic number.

It is an amenable number.

68634344 is a deficient number, since it is larger than the sum of its proper divisors (60610876).

68634344 is a wasteful number, since it uses less digits than its factorization.

68634344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37060 (or 37056 counting only the distinct ones).

The product of its digits is 165888, while the sum is 38.

The square root of 68634344 is about 8284.5847210346. The cubic root of 68634344 is about 409.4307865548.

The spelling of 68634344 in words is "sixty-eight million, six hundred thirty-four thousand, three hundred forty-four".