68699117 has 4 divisors (see below), whose sum is σ = 72314880. Its totient is φ = 65083356.

The previous prime is 68699087. The next prime is 68699123. The reversal of 68699117 is 71199686.

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 68699117 - 2¹² = 68695021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68699177) 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, 1807853 + ... + 1807890.

It is an arithmetic number, because the mean of its divisors is an integer number (18078720).

Almost surely, 2^68699117 is an apocalyptic number.

It is an amenable number.

68699117 is a deficient number, since it is larger than the sum of its proper divisors (3615763).

68699117 is a wasteful number, since it uses less digits than its factorization.

68699117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615762.

The product of its digits is 163296, while the sum is 47.

The square root of 68699117 is about 8288.4930475932. The cubic root of 68699117 is about 409.5595448434.

The spelling of 68699117 in words is "sixty-eight million, six hundred ninety-nine thousand, one hundred seventeen".