854356543 has 2 divisors, whose sum is σ = 854356544. Its totient is φ = 854356542.

The previous prime is 854356541. The next prime is 854356567. The reversal of 854356543 is 345653458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854356543 - 2¹ = 854356541 is a prime.

Together with 854356541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 854356543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854356541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427178271 + 427178272.

It is an arithmetic number, because the mean of its divisors is an integer number (427178272).

Almost surely, 2^854356543 is an apocalyptic number.

854356543 is a deficient number, since it is larger than the sum of its proper divisors (1).

854356543 is an equidigital number, since it uses as much as digits as its factorization.

854356543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864000, while the sum is 43.

The square root of 854356543 is about 29229.3780809650. The cubic root of 854356543 is about 948.8838388979.

The spelling of 854356543 in words is "eight hundred fifty-four million, three hundred fifty-six thousand, five hundred forty-three".