68968912 has 20 divisors (see below), whose sum is σ = 134311716. Its totient is φ = 34307840.

The previous prime is 68968909. The next prime is 68968919. The reversal of 68968912 is 21986986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32535616 + 36433296 = 5704^2 + 6036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68968919) 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, 7789 + ... + 14092.

Almost surely, 2^68968912 is an apocalyptic number.

It is an amenable number.

68968912 is a deficient number, since it is larger than the sum of its proper divisors (65342804).

68968912 is a wasteful number, since it uses less digits than its factorization.

68968912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22086 (or 22080 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 68968912 is about 8304.7523743938. The cubic root of 68968912 is about 410.0949849334.

The spelling of 68968912 in words is "sixty-eight million, nine hundred sixty-eight thousand, nine hundred twelve".