420698165 has 8 divisors (see below), whose sum is σ = 505051008. Its totient is φ = 336416400.

The previous prime is 420698149. The next prime is 420698191. The reversal of 420698165 is 561896024.

It is a happy number.

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

It is not a de Polignac number, because 420698165 - 2⁴ = 420698149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737 + ... + 29246.

It is an arithmetic number, because the mean of its divisors is an integer number (63131376).

Almost surely, 2^420698165 is an apocalyptic number.

It is an amenable number.

420698165 is a deficient number, since it is larger than the sum of its proper divisors (84352843).

420698165 is a wasteful number, since it uses less digits than its factorization.

420698165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35539.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 420698165 is about 20510.9279409782. The cubic root of 420698165 is about 749.3019668308.

The spelling of 420698165 in words is "four hundred twenty million, six hundred ninety-eight thousand, one hundred sixty-five".