68628113 has 4 divisors (see below), whose sum is σ = 71611968. Its totient is φ = 65644260.

The previous prime is 68628101. The next prime is 68628221. The reversal of 68628113 is 31182686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68628113 - 2⁸ = 68627857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68628013) 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, 1491893 + ... + 1491938.

It is an arithmetic number, because the mean of its divisors is an integer number (17902992).

Almost surely, 2^68628113 is an apocalyptic number.

It is an amenable number.

68628113 is a deficient number, since it is larger than the sum of its proper divisors (2983855).

68628113 is a wasteful number, since it uses less digits than its factorization.

68628113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983854.

The product of its digits is 13824, while the sum is 35.

The square root of 68628113 is about 8284.2086526113. The cubic root of 68628113 is about 409.4183960600.

The spelling of 68628113 in words is "sixty-eight million, six hundred twenty-eight thousand, one hundred thirteen".