824972913 has 12 divisors (see below), whose sum is σ = 1254345040. Its totient is φ = 521035416.

The previous prime is 824972909. The next prime is 824972933. The reversal of 824972913 is 319279428.

It is not a de Polignac number, because 824972913 - 2² = 824972909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (824972933) 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 11 ways as a sum of consecutive naturals, for example, 2412031 + ... + 2412372.

Almost surely, 2^824972913 is an apocalyptic number.

It is an amenable number.

824972913 is a deficient number, since it is larger than the sum of its proper divisors (429372127).

824972913 is a wasteful number, since it uses less digits than its factorization.

824972913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824428 (or 4824425 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 824972913 is about 28722.3417046730. The cubic root of 824972913 is about 937.8784630895.

The spelling of 824972913 in words is "eight hundred twenty-four million, nine hundred seventy-two thousand, nine hundred thirteen".