193688023 has 8 divisors (see below), whose sum is σ = 197695728. Its totient is φ = 189693504.

The previous prime is 193688009. The next prime is 193688029. The reversal of 193688023 is 320886391.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193688023 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 (193688029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29740 + ... + 35662.

It is an arithmetic number, because the mean of its divisors is an integer number (24711966).

Almost surely, 2^193688023 is an apocalyptic number.

193688023 is a deficient number, since it is larger than the sum of its proper divisors (4007705).

193688023 is an equidigital number, since it uses as much as digits as its factorization.

193688023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 193688023 is about 13917.1844494495. The cubic root of 193688023 is about 578.5855575737.

The spelling of 193688023 in words is "one hundred ninety-three million, six hundred eighty-eight thousand, twenty-three".