193639093 has 16 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 178808256.

The previous prime is 193639079. The next prime is 193639097. The reversal of 193639093 is 390936391.

It is not a de Polignac number, because 193639093 - 2⁹ = 193638581 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 (193639097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117471 + ... + 119107.

It is an arithmetic number, because the mean of its divisors is an integer number (13071240).

Almost surely, 2^193639093 is an apocalyptic number.

It is an amenable number.

193639093 is a deficient number, since it is larger than the sum of its proper divisors (15500747).

193639093 is a wasteful number, since it uses less digits than its factorization.

193639093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 118098, while the sum is 43.

The square root of 193639093 is about 13915.4264397466. The cubic root of 193639093 is about 578.5368321799.

The spelling of 193639093 in words is "one hundred ninety-three million, six hundred thirty-nine thousand, ninety-three".