193816 has 16 divisors (see below), whose sum is σ = 415440. Its totient is φ = 83040.

The previous prime is 193813. The next prime is 193841. The reversal of 193816 is 618391.

It is a happy number.

193816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (25965).

2¹⁹³⁸¹⁶ is an apocalyptic number.

It is an amenable number.

193816 is an abundant number, since it is smaller than the sum of its proper divisors (221624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193816 is a wasteful number, since it uses less digits than its factorization.

193816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3470 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 193816 is about 440.2453861201. The cubic root of 193816 is about 57.8712960636.

Adding to 193816 its product of digits (1296), we get a cube (195112 = 58³).

The spelling of 193816 in words is "one hundred ninety-three thousand, eight hundred sixteen".