68651673 has 4 divisors (see below), whose sum is σ = 91535568. Its totient is φ = 45767780.

The previous prime is 68651669. The next prime is 68651677. The reversal of 68651673 is 37615686.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (68651669) and next prime (68651677).

It is a cyclic number.

It is not a de Polignac number, because 68651673 - 2² = 68651669 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68651677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11441943 + ... + 11441948.

It is an arithmetic number, because the mean of its divisors is an integer number (22883892).

Almost surely, 2^68651673 is an apocalyptic number.

It is an amenable number.

68651673 is a deficient number, since it is larger than the sum of its proper divisors (22883895).

68651673 is a wasteful number, since it uses less digits than its factorization.

68651673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22883894.

The product of its digits is 181440, while the sum is 42.

The square root of 68651673 is about 8285.6305131233. The cubic root of 68651673 is about 409.4652417495.

The spelling of 68651673 in words is "sixty-eight million, six hundred fifty-one thousand, six hundred seventy-three".