213926 has 4 divisors (see below), whose sum is σ = 320892. Its totient is φ = 106962.

The previous prime is 213919. The next prime is 213929. The reversal of 213926 is 629312.

213926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (213929) by changing a digit.

213926 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53480 + ... + 53483.

It is an arithmetic number, because the mean of its divisors is an integer number (80223).

2²¹³⁹²⁶ is an apocalyptic number.

213926 is a deficient number, since it is larger than the sum of its proper divisors (106966).

213926 is a wasteful number, since it uses less digits than its factorization.

213926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106965.

The product of its digits is 648, while the sum is 23.

The square root of 213926 is about 462.5213508585. The cubic root of 213926 is about 59.8073450261.

The spelling of 213926 in words is "two hundred thirteen thousand, nine hundred twenty-six".