68673907 has 8 divisors (see below), whose sum is σ = 69513696. Its totient is φ = 67839552.

The previous prime is 68673889. The next prime is 68673919. The reversal of 68673907 is 70937686.

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

It is a cyclic number.

It is not a de Polignac number, because 68673907 - 2⁷ = 68673779 is a prime.

It is a super-2 number, since 2×68673907² = 9432211005289298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68673937) 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, 27703 + ... + 30079.

It is an arithmetic number, because the mean of its divisors is an integer number (8689212).

Almost surely, 2^68673907 is an apocalyptic number.

68673907 is a deficient number, since it is larger than the sum of its proper divisors (839789).

68673907 is a wasteful number, since it uses less digits than its factorization.

68673907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 68673907 is about 8286.9721249682. The cubic root of 68673907 is about 409.5094410488.

The spelling of 68673907 in words is "sixty-eight million, six hundred seventy-three thousand, nine hundred seven".