68969660 has 24 divisors (see below), whose sum is σ = 146467440. Its totient is φ = 27277184.

The previous prime is 68969657. The next prime is 68969669. The reversal of 68969660 is 6696986.

It is a junction number, because it is equal to n+sod(n) for n = 68969599 and 68969608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68969669) 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, 17594 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (6102810).

Almost surely, 2^68969660 is an apocalyptic number.

It is an amenable number.

68969660 is an abundant number, since it is smaller than the sum of its proper divisors (77497780).

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

68969660 is a wasteful number, since it uses less digits than its factorization.

68969660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38845 (or 38843 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 68969660 is about 8304.7974087271. The cubic root of 68969660 is about 410.0964674851.

The spelling of 68969660 in words is "sixty-eight million, nine hundred sixty-nine thousand, six hundred sixty".