828712543 has 2 divisors, whose sum is σ = 828712544. Its totient is φ = 828712542.

The previous prime is 828712537. The next prime is 828712561. The reversal of 828712543 is 345217828.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-828712543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 828712496 and 828712505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828712513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414356271 + 414356272.

It is an arithmetic number, because the mean of its divisors is an integer number (414356272).

Almost surely, 2^828712543 is an apocalyptic number.

828712543 is a deficient number, since it is larger than the sum of its proper divisors (1).

828712543 is an equidigital number, since it uses as much as digits as its factorization.

828712543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 828712543 is about 28787.3677678248. The cubic root of 828712543 is about 939.2934720311.

The spelling of 828712543 in words is "eight hundred twenty-eight million, seven hundred twelve thousand, five hundred forty-three".