420911853 has 8 divisors (see below), whose sum is σ = 561869568. Its totient is φ = 280281024.

The previous prime is 420911851. The next prime is 420911861. The reversal of 420911853 is 358119024.

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

It is not a de Polignac number, because 420911853 - 2¹ = 420911851 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420911851) 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, 78700 + ... + 83877.

It is an arithmetic number, because the mean of its divisors is an integer number (70233696).

Almost surely, 2^420911853 is an apocalyptic number.

It is an amenable number.

420911853 is a deficient number, since it is larger than the sum of its proper divisors (140957715).

420911853 is a wasteful number, since it uses less digits than its factorization.

420911853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163443.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 420911853 is about 20516.1364052787. The cubic root of 420911853 is about 749.4288113240.

The spelling of 420911853 in words is "four hundred twenty million, nine hundred eleven thousand, eight hundred fifty-three".