834553823 has 4 divisors (see below), whose sum is σ = 838045920. Its totient is φ = 831061728.

The previous prime is 834553799. The next prime is 834553829. The reversal of 834553823 is 328355438.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328355438 = 2 ⋅164177719.

It is a cyclic number.

It is not a de Polignac number, because 834553823 - 2²⁰ = 833505247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834553829) 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, 1745690 + ... + 1746167.

It is an arithmetic number, because the mean of its divisors is an integer number (209511480).

Almost surely, 2^834553823 is an apocalyptic number.

834553823 is a deficient number, since it is larger than the sum of its proper divisors (3492097).

834553823 is a wasteful number, since it uses less digits than its factorization.

834553823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492096.

The product of its digits is 345600, while the sum is 41.

The square root of 834553823 is about 28888.6452261092. The cubic root of 834553823 is about 941.4952146810.

It can be divided in two parts, 83455 and 3823, that added together give a palindrome (87278).

The spelling of 834553823 in words is "eight hundred thirty-four million, five hundred fifty-three thousand, eight hundred twenty-three".