68668652 has 24 divisors (see below), whose sum is σ = 129884496. Its totient is φ = 31578048.

The previous prime is 68668637. The next prime is 68668657. The reversal of 68668652 is 25686686.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68668597 and 68668606.

It is not an unprimeable number, because it can be changed into a prime (68668657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12983 + ... + 17489.

It is an arithmetic number, because the mean of its divisors is an integer number (5411854).

Almost surely, 2^68668652 is an apocalyptic number.

It is an amenable number.

68668652 is a deficient number, since it is larger than the sum of its proper divisors (61215844).

68668652 is a wasteful number, since it uses less digits than its factorization.

68668652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817 (or 4815 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 68668652 is about 8286.6550549664. The cubic root of 68668652 is about 409.4989954172.

The spelling of 68668652 in words is "sixty-eight million, six hundred sixty-eight thousand, six hundred fifty-two".