68871994 has 8 divisors (see below), whose sum is σ = 103661460. Its totient is φ = 34318176.

The previous prime is 68871983. The next prime is 68872019. The reversal of 68871994 is 49917886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62805625 + 6066369 = 7925^2 + 2463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58179 + ... + 59350.

Almost surely, 2^68871994 is an apocalyptic number.

68871994 is a deficient number, since it is larger than the sum of its proper divisors (34789466).

68871994 is a wasteful number, since it uses less digits than its factorization.

68871994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117824.

The product of its digits is 870912, while the sum is 52.

The square root of 68871994 is about 8298.9152303178. The cubic root of 68871994 is about 409.9028006747.

The spelling of 68871994 in words is "sixty-eight million, eight hundred seventy-one thousand, nine hundred ninety-four".