823241953 has 4 divisors (see below), whose sum is σ = 826686720. Its totient is φ = 819797188.

The previous prime is 823241941. The next prime is 823241957. The reversal of 823241953 is 359142328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-823241953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823241957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1722025 + ... + 1722502.

It is an arithmetic number, because the mean of its divisors is an integer number (206671680).

Almost surely, 2^823241953 is an apocalyptic number.

It is an amenable number.

823241953 is a deficient number, since it is larger than the sum of its proper divisors (3444767).

823241953 is a wasteful number, since it uses less digits than its factorization.

823241953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444766.

The product of its digits is 51840, while the sum is 37.

The square root of 823241953 is about 28692.1932413679. The cubic root of 823241953 is about 937.2220508880. Note that the first 3 decimals are identical.

The spelling of 823241953 in words is "eight hundred twenty-three million, two hundred forty-one thousand, nine hundred fifty-three".