68613646 has 8 divisors (see below), whose sum is σ = 107395344. Its totient is φ = 32815200.

The previous prime is 68613599. The next prime is 68613679. The reversal of 68613646 is 64631686.

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

It is a junction number, because it is equal to n+sod(n) for n = 68613599 and 68613608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745755 + ... + 745846.

It is an arithmetic number, because the mean of its divisors is an integer number (13424418).

Almost surely, 2^68613646 is an apocalyptic number.

68613646 is a deficient number, since it is larger than the sum of its proper divisors (38781698).

68613646 is a wasteful number, since it uses less digits than its factorization.

68613646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491626.

The product of its digits is 124416, while the sum is 40.

The square root of 68613646 is about 8283.3354393022. The cubic root of 68613646 is about 409.3896251870.

The spelling of 68613646 in words is "sixty-eight million, six hundred thirteen thousand, six hundred forty-six".