68856760 has 144 divisors (see below), whose sum is σ = 194221800. Its totient is φ = 21845376.

The previous prime is 68856757. The next prime is 68856763. The reversal of 68856760 is 6765886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68856757) and next prime (68856763).

It is a self number, because there is not a number n which added to its sum of digits gives 68856760.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68856763) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1601299 + ... + 1601341.

Almost surely, 2^68856760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68856760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97110900).

68856760 is an abundant number, since it is smaller than the sum of its proper divisors (125365040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68856760 is a wasteful number, since it uses less digits than its factorization.

68856760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 68856760 is about 8297.9973487583. The cubic root of 68856760 is about 409.8725759086.

The spelling of 68856760 in words is "sixty-eight million, eight hundred fifty-six thousand, seven hundred sixty".