823534011 has 12 divisors (see below), whose sum is σ = 1194529440. Its totient is φ = 546724080.

The previous prime is 823534001. The next prime is 823534037. The reversal of 823534011 is 110435328.

It is a happy number.

It is not a de Polignac number, because 823534011 - 2¹¹ = 823531963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (823534001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189280 + ... + 193581.

It is an arithmetic number, because the mean of its divisors is an integer number (99544120).

Almost surely, 2^823534011 is an apocalyptic number.

823534011 is a deficient number, since it is larger than the sum of its proper divisors (370995429).

823534011 is a wasteful number, since it uses less digits than its factorization.

823534011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383106 (or 383103 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 823534011 is about 28697.2822929280. The cubic root of 823534011 is about 937.3328691936.

Adding to 823534011 its reverse (110435328), we get a palindrome (933969339).

The spelling of 823534011 in words is "eight hundred twenty-three million, five hundred thirty-four thousand, eleven".