826428443 has 4 divisors (see below), whose sum is σ = 830994528. Its totient is φ = 821862360.

The previous prime is 826428437. The next prime is 826428487. The reversal of 826428443 is 344824628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 826428443 - 2¹⁶ = 826362907 is a prime.

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 826428443.

It is not an unprimeable number, because it can be changed into a prime (826428413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282771 + ... + 2283132.

It is an arithmetic number, because the mean of its divisors is an integer number (207748632).

Almost surely, 2^826428443 is an apocalyptic number.

826428443 is a deficient number, since it is larger than the sum of its proper divisors (4566085).

826428443 is a wasteful number, since it uses less digits than its factorization.

826428443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566084.

The product of its digits is 294912, while the sum is 41.

The square root of 826428443 is about 28747.6684793741. The cubic root of 826428443 is about 938.4297168199.

The spelling of 826428443 in words is "eight hundred twenty-six million, four hundred twenty-eight thousand, four hundred forty-three".