68689950 has 48 divisors (see below), whose sum is σ = 194689920. Its totient is φ = 15700320.

The previous prime is 68689949. The next prime is 68689969. The reversal of 68689950 is 5998686.

It is a junction number, because it is equal to n+sod(n) for n = 68689893 and 68689902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31660 + ... + 33759.

It is an arithmetic number, because the mean of its divisors is an integer number (4056040).

Almost surely, 2^68689950 is an apocalyptic number.

68689950 is an abundant number, since it is smaller than the sum of its proper divisors (125999970).

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

68689950 is a wasteful number, since it uses less digits than its factorization.

68689950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65441 (or 65436 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 68689950 is about 8287.9400335668. The cubic root of 68689950 is about 409.5413272422.

The spelling of 68689950 in words is "sixty-eight million, six hundred eighty-nine thousand, nine hundred fifty".