854739829 has 2 divisors, whose sum is σ = 854739830. Its totient is φ = 854739828.

The previous prime is 854739827. The next prime is 854739863. The reversal of 854739829 is 928937458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779917329 + 74822500 = 27927^2 + 8650^2 .

It is a cyclic number.

It is not a de Polignac number, because 854739829 - 2¹ = 854739827 is a prime.

Together with 854739827, 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 854739829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854739827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427369914 + 427369915.

It is an arithmetic number, because the mean of its divisors is an integer number (427369915).

Almost surely, 2^854739829 is an apocalyptic number.

It is an amenable number.

854739829 is a deficient number, since it is larger than the sum of its proper divisors (1).

854739829 is an equidigital number, since it uses as much as digits as its factorization.

854739829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 55.

The square root of 854739829 is about 29235.9338657071. The cubic root of 854739829 is about 949.0257154638.

The spelling of 854739829 in words is "eight hundred fifty-four million, seven hundred thirty-nine thousand, eight hundred twenty-nine".