421797 has 8 divisors (see below), whose sum is σ = 586944. Its totient is φ = 268928.

The previous prime is 421783. The next prime is 421801. The reversal of 421797 is 797124.

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 421797 - 2¹⁴ = 405413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421717) 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, 2988 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (73368).

2⁴²¹⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

421797 is a deficient number, since it is larger than the sum of its proper divisors (165147).

421797 is a wasteful number, since it uses less digits than its factorization.

421797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139.

The product of its digits is 3528, while the sum is 30.

The square root of 421797 is about 649.4590056347. The cubic root of 421797 is about 74.9953774929.

The spelling of 421797 in words is "four hundred twenty-one thousand, seven hundred ninety-seven".