834552839 has 4 divisors (see below), whose sum is σ = 837219456. Its totient is φ = 831886224.

The previous prime is 834552793. The next prime is 834552841. The reversal of 834552839 is 938255438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938255438 = 2 ⋅469127719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-834552839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 834552793 and 834552802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834552889) 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, 1332839 + ... + 1333464.

It is an arithmetic number, because the mean of its divisors is an integer number (209304864).

Almost surely, 2^834552839 is an apocalyptic number.

834552839 is a deficient number, since it is larger than the sum of its proper divisors (2666617).

834552839 is a wasteful number, since it uses less digits than its factorization.

834552839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666616.

The product of its digits is 1036800, while the sum is 47.

The square root of 834552839 is about 28888.6281951913. The cubic root of 834552839 is about 941.4948446503.

The spelling of 834552839 in words is "eight hundred thirty-four million, five hundred fifty-two thousand, eight hundred thirty-nine".