68813635 has 8 divisors (see below), whose sum is σ = 90083376. Its totient is φ = 50046240.

The previous prime is 68813617. The next prime is 68813639. The reversal of 68813635 is 53631886.

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

It is not a de Polignac number, because 68813635 - 2¹⁵ = 68780867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68813639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625524 + ... + 625633.

It is an arithmetic number, because the mean of its divisors is an integer number (11260422).

Almost surely, 2^68813635 is an apocalyptic number.

68813635 is a deficient number, since it is larger than the sum of its proper divisors (21269741).

68813635 is a wasteful number, since it uses less digits than its factorization.

68813635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251173.

The product of its digits is 103680, while the sum is 40.

The square root of 68813635 is about 8295.3984232224. The cubic root of 68813635 is about 409.7869902850.

The spelling of 68813635 in words is "sixty-eight million, eight hundred thirteen thousand, six hundred thirty-five".