981824413 has 2 divisors, whose sum is σ = 981824414. Its totient is φ = 981824412.

The previous prime is 981824387. The next prime is 981824429. The reversal of 981824413 is 314428189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 947285284 + 34539129 = 30778^2 + 5877^2 .

It is a cyclic number.

It is not a de Polignac number, because 981824413 - 2²¹ = 979727261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981824113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490912206 + 490912207.

It is an arithmetic number, because the mean of its divisors is an integer number (490912207).

Almost surely, 2^981824413 is an apocalyptic number.

It is an amenable number.

981824413 is a deficient number, since it is larger than the sum of its proper divisors (1).

981824413 is an equidigital number, since it uses as much as digits as its factorization.

981824413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 40.

The square root of 981824413 is about 31334.0775035743. The cubic root of 981824413 is about 993.9043900363.

The spelling of 981824413 in words is "nine hundred eighty-one million, eight hundred twenty-four thousand, four hundred thirteen".