68208697 has 4 divisors (see below), whose sum is σ = 68356480. Its totient is φ = 68060916.

The previous prime is 68208683. The next prime is 68208719. The reversal of 68208697 is 79680286.

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 a de Polignac number, because none of the positive numbers 2^k-68208697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68208617) 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, 73197 + ... + 74122.

It is an arithmetic number, because the mean of its divisors is an integer number (17089120).

Almost surely, 2^68208697 is an apocalyptic number.

It is an amenable number.

68208697 is a deficient number, since it is larger than the sum of its proper divisors (147783).

68208697 is a wasteful number, since it uses less digits than its factorization.

68208697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147782.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 68208697 is about 8258.8556713385. The cubic root of 68208697 is about 408.5826470621.

The spelling of 68208697 in words is "sixty-eight million, two hundred eight thousand, six hundred ninety-seven".