193508923 has 2 divisors, whose sum is σ = 193508924. Its totient is φ = 193508922.

The previous prime is 193508813. The next prime is 193508929. The reversal of 193508923 is 329805391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193508923 - 2²¹ = 191411771 is a prime.

It is not a weakly prime, because it can be changed into another prime (193508929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96754461 + 96754462.

It is an arithmetic number, because the mean of its divisors is an integer number (96754462).

Almost surely, 2^193508923 is an apocalyptic number.

193508923 is a deficient number, since it is larger than the sum of its proper divisors (1).

193508923 is an equidigital number, since it uses as much as digits as its factorization.

193508923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 193508923 is about 13910.7484701579. The cubic root of 193508923 is about 578.4071665230.

The spelling of 193508923 in words is "one hundred ninety-three million, five hundred eight thousand, nine hundred twenty-three".