193390 has 16 divisors (see below), whose sum is σ = 353808. Its totient is φ = 76096.

The previous prime is 193387. The next prime is 193393. The reversal of 193390 is 93391.

It is an interprime number because it is at equal distance from previous prime (193387) and next prime (193393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714 + ... + 946.

It is an arithmetic number, because the mean of its divisors is an integer number (22113).

2¹⁹³³⁹⁰ is an apocalyptic number.

193390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193390 is a deficient number, since it is larger than the sum of its proper divisors (160418).

193390 is a wasteful number, since it uses less digits than its factorization.

193390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 193390 is about 439.7612988884. The cubic root of 193390 is about 57.8288653450.

Subtracting from 193390 its reverse (93391), we obtain a palindrome (99999).

The spelling of 193390 in words is "one hundred ninety-three thousand, three hundred ninety".