68659812 has 60 divisors (see below), whose sum is σ = 193309116. Its totient is φ = 21124800.

The previous prime is 68659783. The next prime is 68659813. The reversal of 68659812 is 21895686.

It can be written as a sum of positive squares in 2 ways, for example, as 33802596 + 34857216 = 5814^2 + 5904^2 .

It is not an unprimeable number, because it can be changed into a prime (68659813) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3939 + ... + 12362.

Almost surely, 2^68659812 is an apocalyptic number.

It is an amenable number.

68659812 is an abundant number, since it is smaller than the sum of its proper divisors (124649304).

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

68659812 is a wasteful number, since it uses less digits than its factorization.

68659812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330 (or 16319 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 68659812 is about 8286.1216500846. The cubic root of 68659812 is about 409.4814224958.

The spelling of 68659812 in words is "sixty-eight million, six hundred fifty-nine thousand, eight hundred twelve".