420601 has 4 divisors (see below), whose sum is σ = 438912. Its totient is φ = 402292.

The previous prime is 420599. The next prime is 420613. The reversal of 420601 is 106024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420601 - 2¹ = 420599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420671) 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, 9121 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (109728).

2⁴²⁰⁶⁰¹ is an apocalyptic number.

It is an amenable number.

420601 is a deficient number, since it is larger than the sum of its proper divisors (18311).

420601 is a wasteful number, since it uses less digits than its factorization.

420601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18310.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 420601 is about 648.5375856494. The cubic root of 420601 is about 74.9244275801.

Adding to 420601 its reverse (106024), we get a palindrome (526625).

The spelling of 420601 in words is "four hundred twenty thousand, six hundred one".