68861948 has 6 divisors (see below), whose sum is σ = 120508416. Its totient is φ = 34430972.

The previous prime is 68861939. The next prime is 68861953. The reversal of 68861948 is 84916886.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68861896 and 68861905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8607740 + ... + 8607747.

It is an arithmetic number, because the mean of its divisors is an integer number (20084736).

Almost surely, 2^68861948 is an apocalyptic number.

It is an amenable number.

68861948 is a deficient number, since it is larger than the sum of its proper divisors (51646468).

68861948 is a wasteful number, since it uses less digits than its factorization.

68861948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17215491 (or 17215489 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 68861948 is about 8298.3099484172. The cubic root of 68861948 is about 409.8828695748.

The spelling of 68861948 in words is "sixty-eight million, eight hundred sixty-one thousand, nine hundred forty-eight".