68870660 has 12 divisors (see below), whose sum is σ = 144628428. Its totient is φ = 27548256.

The previous prime is 68870629. The next prime is 68870701. The reversal of 68870660 is 6607886.

It can be written as a sum of positive squares in 2 ways, for example, as 10745284 + 58125376 = 3278^2 + 7624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721747 + ... + 1721786.

It is an arithmetic number, because the mean of its divisors is an integer number (12052369).

Almost surely, 2^68870660 is an apocalyptic number.

It is an amenable number.

68870660 is an abundant number, since it is smaller than the sum of its proper divisors (75757768).

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

68870660 is a wasteful number, since it uses less digits than its factorization.

68870660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443542 (or 3443540 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 68870660 is about 8298.8348579786. The cubic root of 68870660 is about 409.9001541521.

The spelling of 68870660 in words is "sixty-eight million, eight hundred seventy thousand, six hundred sixty".