68692817 has 4 divisors (see below), whose sum is σ = 68738880. Its totient is φ = 68646756.

The previous prime is 68692783. The next prime is 68692829. The reversal of 68692817 is 71829686.

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 a cyclic number.

It is not a de Polignac number, because 68692817 - 2¹⁰ = 68691793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68692837) 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, 20717 + ... + 23802.

It is an arithmetic number, because the mean of its divisors is an integer number (17184720).

Almost surely, 2^68692817 is an apocalyptic number.

It is an amenable number.

68692817 is a deficient number, since it is larger than the sum of its proper divisors (46063).

68692817 is a wasteful number, since it uses less digits than its factorization.

68692817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46062.

The product of its digits is 290304, while the sum is 47.

The square root of 68692817 is about 8288.1129939209. The cubic root of 68692817 is about 409.5470250124.

The spelling of 68692817 in words is "sixty-eight million, six hundred ninety-two thousand, eight hundred seventeen".