68049593 has 4 divisors (see below), whose sum is σ = 68197668. Its totient is φ = 67901520.

The previous prime is 68049577. The next prime is 68049601. The reversal of 68049593 is 39594086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28761769 + 39287824 = 5363^2 + 6268^2 .

It is a cyclic number.

It is not a de Polignac number, because 68049593 - 2⁴ = 68049577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68049503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73346 + ... + 74267.

It is an arithmetic number, because the mean of its divisors is an integer number (17049417).

Almost surely, 2^68049593 is an apocalyptic number.

It is an amenable number.

68049593 is a deficient number, since it is larger than the sum of its proper divisors (148075).

68049593 is a wasteful number, since it uses less digits than its factorization.

68049593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148074.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 68049593 is about 8249.2177204872. The cubic root of 68049593 is about 408.2647123153.

The spelling of 68049593 in words is "sixty-eight million, forty-nine thousand, five hundred ninety-three".