68099593 has 4 divisors (see below), whose sum is σ = 68133268. Its totient is φ = 68065920.

The previous prime is 68099567. The next prime is 68099599. The reversal of 68099593 is 39599086.

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 14341369 + 53758224 = 3787^2 + 7332^2 .

It is a cyclic number.

It is not a de Polignac number, because 68099593 - 2⁵ = 68099561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68099599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13596 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (17033317).

Almost surely, 2^68099593 is an apocalyptic number.

It is an amenable number.

68099593 is a deficient number, since it is larger than the sum of its proper divisors (33675).

68099593 is a wasteful number, since it uses less digits than its factorization.

68099593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33674.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 68099593 is about 8252.2477544000. The cubic root of 68099593 is about 408.3646797908.

The spelling of 68099593 in words is "sixty-eight million, ninety-nine thousand, five hundred ninety-three".