421934 has 4 divisors (see below), whose sum is σ = 632904. Its totient is φ = 210966.

The previous prime is 421913. The next prime is 421943. The reversal of 421934 is 439124.

421934 is digitally balanced in base 3, 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 an unprimeable number.

421934 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, 105482 + ... + 105485.

It is an arithmetic number, because the mean of its divisors is an integer number (158226).

2⁴²¹⁹³⁴ is an apocalyptic number.

421934 is a deficient number, since it is larger than the sum of its proper divisors (210970).

421934 is a wasteful number, since it uses less digits than its factorization.

421934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210969.

The product of its digits is 864, while the sum is 23.

The square root of 421934 is about 649.5644694717. The cubic root of 421934 is about 75.0034961333.

The spelling of 421934 in words is "four hundred twenty-one thousand, nine hundred thirty-four".