193892493 has 4 divisors (see below), whose sum is σ = 258523328. Its totient is φ = 129261660.

The previous prime is 193892483. The next prime is 193892509. The reversal of 193892493 is 394298391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 193892493 - 2⁴ = 193892477 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 (193892423) 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, 32315413 + ... + 32315418.

It is an arithmetic number, because the mean of its divisors is an integer number (64630832).

Almost surely, 2^193892493 is an apocalyptic number.

It is an amenable number.

193892493 is a deficient number, since it is larger than the sum of its proper divisors (64630835).

193892493 is an equidigital number, since it uses as much as digits as its factorization.

193892493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64630834.

The product of its digits is 419904, while the sum is 48.

The square root of 193892493 is about 13924.5284659840. The cubic root of 193892493 is about 578.7890838112.

The spelling of 193892493 in words is "one hundred ninety-three million, eight hundred ninety-two thousand, four hundred ninety-three".