421319 has 8 divisors (see below), whose sum is σ = 442320. Its totient is φ = 400896.

The previous prime is 421313. The next prime is 421331. The reversal of 421319 is 913124.

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

It is a cyclic number.

It is not a de Polignac number, because 421319 - 2⁴ = 421303 is a prime.

It is a super-2 number, since 2×421319² = 355019399522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421313) 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, 2087 + ... + 2279.

It is an arithmetic number, because the mean of its divisors is an integer number (55290).

2⁴²¹³¹⁹ is an apocalyptic number.

421319 is a deficient number, since it is larger than the sum of its proper divisors (21001).

421319 is a wasteful number, since it uses less digits than its factorization.

421319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its digits is 216, while the sum is 20.

The square root of 421319 is about 649.0909027247. The cubic root of 421319 is about 74.9670373668.

The spelling of 421319 in words is "four hundred twenty-one thousand, three hundred nineteen".