68776646 has 8 divisors (see below), whose sum is σ = 104856384. Its totient is φ = 33824520.

The previous prime is 68776627. The next prime is 68776649. The reversal of 68776646 is 64667786.

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 = 68776594 and 68776603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68776649) 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, 281750 + ... + 281993.

It is an arithmetic number, because the mean of its divisors is an integer number (13107048).

Almost surely, 2^68776646 is an apocalyptic number.

68776646 is a deficient number, since it is larger than the sum of its proper divisors (36079738).

68776646 is a wasteful number, since it uses less digits than its factorization.

68776646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563806.

The product of its digits is 2032128, while the sum is 50.

The square root of 68776646 is about 8293.1686344847. The cubic root of 68776646 is about 409.7135536390.

The spelling of 68776646 in words is "sixty-eight million, seven hundred seventy-six thousand, six hundred forty-six".