426853643 has 4 divisors (see below), whose sum is σ = 426895728. Its totient is φ = 426811560.

The previous prime is 426853631. The next prime is 426853649. The reversal of 426853643 is 346358624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 426853643 - 2¹² = 426849547 is a prime.

It is a super-3 number, since 3×426853643³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426853643.

It is not an unprimeable number, because it can be changed into a prime (426853649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4538 + ... + 29568.

It is an arithmetic number, because the mean of its divisors is an integer number (106723932).

Almost surely, 2^426853643 is an apocalyptic number.

426853643 is a deficient number, since it is larger than the sum of its proper divisors (42085).

426853643 is a wasteful number, since it uses less digits than its factorization.

426853643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42084.

The product of its digits is 414720, while the sum is 41.

The square root of 426853643 is about 20660.4366604387. The cubic root of 426853643 is about 752.9387767113.

The spelling of 426853643 in words is "four hundred twenty-six million, eight hundred fifty-three thousand, six hundred forty-three".