68867776 has 56 divisors (see below), whose sum is σ = 141549120. Its totient is φ = 33226752.

The previous prime is 68867749. The next prime is 68867789. The reversal of 68867776 is 67776886.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267840 + ... + 268096.

Almost surely, 2^68867776 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 68867776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70774560).

68867776 is an abundant number, since it is smaller than the sum of its proper divisors (72681344).

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

68867776 is a wasteful number, since it uses less digits than its factorization.

68867776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 391 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 55.

The square root of 68867776 is about 8298.6610968276. The cubic root of 68867776 is about 409.8944324677.

The spelling of 68867776 in words is "sixty-eight million, eight hundred sixty-seven thousand, seven hundred seventy-six".