420007 has 8 divisors (see below), whose sum is σ = 496800. Its totient is φ = 347424.

The previous prime is 420001. The next prime is 420029. The reversal of 420007 is 700024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420007 - 2³ = 419999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420001) 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, 832 + ... + 1237.

It is an arithmetic number, because the mean of its divisors is an integer number (62100).

2⁴²⁰⁰⁰⁷ is an apocalyptic number.

420007 is a deficient number, since it is larger than the sum of its proper divisors (76793).

420007 is a wasteful number, since it uses less digits than its factorization.

420007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 420007 is about 648.0794704355. The cubic root of 420007 is about 74.8891399183.

The spelling of 420007 in words is "four hundred twenty thousand, seven", and thus it is an iban number.