420675 has 24 divisors (see below), whose sum is σ = 714240. Its totient is φ = 218400.

The previous prime is 420671. The next prime is 420677. The reversal of 420675 is 576024.

It is a happy number.

It is not a de Polignac number, because 420675 - 2² = 420671 is a prime.

It is a super-3 number, since 3×420675³ = 223337353185140625, which contains 333 as substring.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 5286 + ... + 5364.

It is an arithmetic number, because the mean of its divisors is an integer number (29760).

2⁴²⁰⁶⁷⁵ is an apocalyptic number.

420675 is a deficient number, since it is larger than the sum of its proper divisors (293565).

420675 is a wasteful number, since it uses less digits than its factorization.

420675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 420675 is about 648.5946345754. The cubic root of 420675 is about 74.9288213583.

Adding to 420675 its reverse (576024), we get a palindrome (996699).

The spelling of 420675 in words is "four hundred twenty thousand, six hundred seventy-five".