68910976 has 16 divisors (see below), whose sum is σ = 137283840. Its totient is φ = 34455424.

The previous prime is 68910973. The next prime is 68911001. The reversal of 68910976 is 67901986.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×68910976² = 9497445226545152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910973) 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 as a sum of consecutive naturals, namely, 269056 + ... + 269311.

It is an arithmetic number, because the mean of its divisors is an integer number (8580240).

Almost surely, 2^68910976 is an apocalyptic number.

It is an amenable number.

68910976 is a deficient number, since it is larger than the sum of its proper divisors (68372864).

68910976 is an equidigital number, since it uses as much as digits as its factorization.

68910976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538381 (or 538369 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 68910976 is about 8301.2635182844. The cubic root of 68910976 is about 409.9801219790.

The spelling of 68910976 in words is "sixty-eight million, nine hundred ten thousand, nine hundred seventy-six".