1993934 has 4 divisors (see below), whose sum is σ = 2990904.
Its totient is φ = 996966.
The previous prime is 1993933. The next prime is 1993949. The reversal of 1993934 is 4393991.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1993931) 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 as a sum of consecutive naturals, namely, 498482 + ... + 498485.
It is an arithmetic number, because the mean of its divisors is an integer number (747726).
21993934 is an apocalyptic number.
1993934 is a deficient number, since it is larger than the sum of its proper divisors (996970).
1993934 is an equidigital number, since it uses as much as digits as its factorization.
1993934 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 996969.
The product of its digits is 26244, while the sum is 38.
The square root of 1993934 is about 1412.0672788504.
The cubic root of 1993934 is about 125.8645979747.
The spelling of 1993934 in words is "one million, nine hundred ninety-three thousand, nine hundred thirty-four".