68949812 has 12 divisors (see below), whose sum is σ = 123468576. Its totient is φ = 33673080.

The previous prime is 68949809. The next prime is 68949851. The reversal of 68949812 is 21894986.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 200264 + ... + 200607.

It is an arithmetic number, because the mean of its divisors is an integer number (10289048).

Almost surely, 2^68949812 is an apocalyptic number.

It is an amenable number.

68949812 is a deficient number, since it is larger than the sum of its proper divisors (54518764).

68949812 is a wasteful number, since it uses less digits than its factorization.

68949812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400918 (or 400916 counting only the distinct ones).

The product of its digits is 248832, while the sum is 47.

The square root of 68949812 is about 8303.6023507873. The cubic root of 68949812 is about 410.0571246997.

The spelling of 68949812 in words is "sixty-eight million, nine hundred forty-nine thousand, eight hundred twelve".