19934 has 4 divisors (see below), whose sum is σ = 29904. Its totient is φ = 9966.

The previous prime is 19927. The next prime is 19937. The reversal of 19934 is 43991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 16.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4982 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (7476).

2¹⁹⁹³⁴ is an apocalyptic number.

19934 is a deficient number, since it is larger than the sum of its proper divisors (9970).

19934 is an equidigital number, since it uses as much as digits as its factorization.

19934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9969.

The product of its digits is 972, while the sum is 26.

The square root of 19934 is about 141.1878181714. The cubic root of 19934 is about 27.1142846674.

The spelling of 19934 in words is "nineteen thousand, nine hundred thirty-four".