68391597 has 8 divisors (see below), whose sum is σ = 91359520. Its totient is φ = 45509040.

The previous prime is 68391539. The next prime is 68391601. The reversal of 68391597 is 79519386.

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

It is not a de Polignac number, because 68391597 - 2⁸ = 68391341 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 (68391097) 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, 19447 + ... + 22692.

It is an arithmetic number, because the mean of its divisors is an integer number (11419940).

Almost surely, 2^68391597 is an apocalyptic number.

It is an amenable number.

68391597 is a deficient number, since it is larger than the sum of its proper divisors (22967923).

68391597 is a wasteful number, since it uses less digits than its factorization.

68391597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42683.

The product of its digits is 408240, while the sum is 48.

The square root of 68391597 is about 8269.9212209065. The cubic root of 68391597 is about 408.9475226737.

The spelling of 68391597 in words is "sixty-eight million, three hundred ninety-one thousand, five hundred ninety-seven".