68820746 has 8 divisors (see below), whose sum is σ = 103331424. Its totient is φ = 34376940.

The previous prime is 68820733. The next prime is 68820757. The reversal of 68820746 is 64702886.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 14060 + ... + 18311.

It is an arithmetic number, because the mean of its divisors is an integer number (12916428).

Almost surely, 2^68820746 is an apocalyptic number.

68820746 is a deficient number, since it is larger than the sum of its proper divisors (34510678).

68820746 is a wasteful number, since it uses less digits than its factorization.

68820746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33436.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 68820746 is about 8295.8270232690. The cubic root of 68820746 is about 409.8011051956.

The spelling of 68820746 in words is "sixty-eight million, eight hundred twenty thousand, seven hundred forty-six".