421927 has 8 divisors (see below), whose sum is σ = 465552. Its totient is φ = 382360.

The previous prime is 421913. The next prime is 421943. The reversal of 421927 is 729124.

It is a de Polignac number, because none of the positive numbers 2^k-421927 is a prime.

It is a Duffinian number.

421927 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421907) 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, 1173 + ... + 1489.

It is an arithmetic number, because the mean of its divisors is an integer number (58194).

2⁴²¹⁹²⁷ is an apocalyptic number.

421927 is a deficient number, since it is larger than the sum of its proper divisors (43625).

421927 is an equidigital number, since it uses as much as digits as its factorization.

421927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 328 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 421927 is about 649.5590812236. The cubic root of 421927 is about 75.0030813549.

The spelling of 421927 in words is "four hundred twenty-one thousand, nine hundred twenty-seven".