68993812 has 12 divisors (see below), whose sum is σ = 120851136. Its totient is φ = 34464920.

The previous prime is 68993773. The next prime is 68993819. The reversal of 68993812 is 21839986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68993819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2764 + ... + 12067.

It is an arithmetic number, because the mean of its divisors is an integer number (10070928).

Almost surely, 2^68993812 is an apocalyptic number.

It is an amenable number.

68993812 is a deficient number, since it is larger than the sum of its proper divisors (51857324).

68993812 is a wasteful number, since it uses less digits than its factorization.

68993812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15998 (or 15996 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 68993812 is about 8306.2513807373. The cubic root of 68993812 is about 410.1443314974.

The spelling of 68993812 in words is "sixty-eight million, nine hundred ninety-three thousand, eight hundred twelve".