68415593 has 8 divisors (see below), whose sum is σ = 73132416. Its totient is φ = 63844000.

The previous prime is 68415583. The next prime is 68415601. The reversal of 68415593 is 39551486.

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

It is a cyclic number.

It is not a de Polignac number, because 68415593 - 2⁸ = 68415337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 68415593.

It is not an unprimeable number, because it can be changed into a prime (68415583) 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, 35333 + ... + 37218.

It is an arithmetic number, because the mean of its divisors is an integer number (9141552).

Almost surely, 2^68415593 is an apocalyptic number.

It is an amenable number.

68415593 is a deficient number, since it is larger than the sum of its proper divisors (4716823).

68415593 is a wasteful number, since it uses less digits than its factorization.

68415593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615.

The product of its digits is 129600, while the sum is 41.

The square root of 68415593 is about 8271.3718934648. The cubic root of 68415593 is about 408.9953451048.

The spelling of 68415593 in words is "sixty-eight million, four hundred fifteen thousand, five hundred ninety-three".