68669973 has 12 divisors (see below), whose sum is σ = 103502880. Its totient is φ = 43789416.

The previous prime is 68669969. The next prime is 68669983. The reversal of 68669973 is 37996686.

It is a happy number.

It is not a de Polignac number, because 68669973 - 2² = 68669969 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68669963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165663 + ... + 166076.

It is an arithmetic number, because the mean of its divisors is an integer number (8625240).

Almost surely, 2^68669973 is an apocalyptic number.

It is an amenable number.

68669973 is a deficient number, since it is larger than the sum of its proper divisors (34832907).

68669973 is a wasteful number, since it uses less digits than its factorization.

68669973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331768 (or 331765 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 68669973 is about 8286.7347610503. The cubic root of 68669973 is about 409.5016212864.

The spelling of 68669973 in words is "sixty-eight million, six hundred sixty-nine thousand, nine hundred seventy-three".