420179 has 4 divisors (see below), whose sum is σ = 423384. Its totient is φ = 416976.

The previous prime is 420163. The next prime is 420191. The reversal of 420179 is 971024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420179 - 2⁴ = 420163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (105846).

2⁴²⁰¹⁷⁹ is an apocalyptic number.

420179 is a deficient number, since it is larger than the sum of its proper divisors (3205).

420179 is a wasteful number, since it uses less digits than its factorization.

420179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 420179 is about 648.2121566278. The cubic root of 420179 is about 74.8993613148.

The spelling of 420179 in words is "four hundred twenty thousand, one hundred seventy-nine".