68643113 has 16 divisors (see below), whose sum is σ = 86092416. Its totient is φ = 53168640.

The previous prime is 68643097. The next prime is 68643121. The reversal of 68643113 is 31134686.

It is not a de Polignac number, because 68643113 - 2⁴ = 68643097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68643113.

It is not an unprimeable number, because it can be changed into a prime (68643163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10745 + ... + 15897.

It is an arithmetic number, because the mean of its divisors is an integer number (5380776).

Almost surely, 2^68643113 is an apocalyptic number.

It is an amenable number.

68643113 is a deficient number, since it is larger than the sum of its proper divisors (17449303).

68643113 is a wasteful number, since it uses less digits than its factorization.

68643113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344.

The product of its digits is 10368, while the sum is 32.

The square root of 68643113 is about 8285.1139400735. The cubic root of 68643113 is about 409.4482226539.

Adding to 68643113 its reverse (31134686), we get a palindrome (99777799).

The spelling of 68643113 in words is "sixty-eight million, six hundred forty-three thousand, one hundred thirteen".