421933 has 8 divisors (see below), whose sum is σ = 453600. Its totient is φ = 391248.

The previous prime is 421913. The next prime is 421943. The reversal of 421933 is 339124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421933 - 2¹⁷ = 290861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 1216.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2⁴²¹⁹³³ is an apocalyptic number.

It is an amenable number.

421933 is a deficient number, since it is larger than the sum of its proper divisors (31667).

421933 is a wasteful number, since it uses less digits than its factorization.

421933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its digits is 648, while the sum is 22.

The square root of 421933 is about 649.5636997247. The cubic root of 421933 is about 75.0034368795.

The spelling of 421933 in words is "four hundred twenty-one thousand, nine hundred thirty-three".