421795 has 8 divisors (see below), whose sum is σ = 552240. Its totient is φ = 306720.

The previous prime is 421783. The next prime is 421801. The reversal of 421795 is 597124.

It is a happy number.

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

It is not a de Polignac number, because 421795 - 2¹⁵ = 389027 is a prime.

It is a super-2 number, since 2×421795² = 355822044050, which contains 22 as substring.

421795 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3780 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (69030).

2⁴²¹⁷⁹⁵ is an apocalyptic number.

421795 is a deficient number, since it is larger than the sum of its proper divisors (130445).

421795 is a wasteful number, since it uses less digits than its factorization.

421795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685.

The product of its digits is 2520, while the sum is 28.

The square root of 421795 is about 649.4574658898. The cubic root of 421795 is about 74.9952589596.

The spelling of 421795 in words is "four hundred twenty-one thousand, seven hundred ninety-five".