420698 has 8 divisors (see below), whose sum is σ = 664320. Its totient is φ = 199260.

The previous prime is 420691. The next prime is 420731. The reversal of 420698 is 896024.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 420698.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420698.

It is not an unprimeable number, because it can be changed into a prime (420691) by changing a digit.

420698 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5498 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (83040).

2⁴²⁰⁶⁹⁸ is an apocalyptic number.

420698 is a deficient number, since it is larger than the sum of its proper divisors (243622).

420698 is a wasteful number, since it uses less digits than its factorization.

420698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11092.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 420698 is about 648.6123649762. The cubic root of 420698 is about 74.9301868871.

It can be divided in two parts, 4 and 20698, that added together give a palindrome (20702).

The spelling of 420698 in words is "four hundred twenty thousand, six hundred ninety-eight".