68669694 has 20 divisors (see below), whose sum is σ = 153871344. Its totient is φ = 22889844.

The previous prime is 68669693. The next prime is 68669717. The reversal of 68669694 is 49696686.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 68669694.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68669693) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 211782 + ... + 212105.

Almost surely, 2^68669694 is an apocalyptic number.

68669694 is an abundant number, since it is smaller than the sum of its proper divisors (85201650).

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

68669694 is a wasteful number, since it uses less digits than its factorization.

68669694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423901 (or 423892 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 68669694 is about 8286.7179268996. The cubic root of 68669694 is about 409.5010666961.

The spelling of 68669694 in words is "sixty-eight million, six hundred sixty-nine thousand, six hundred ninety-four".