981824479 has 2 divisors, whose sum is σ = 981824480. Its totient is φ = 981824478.

The previous prime is 981824429. The next prime is 981824521. The reversal of 981824479 is 974428189.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 981824479 - 2⁷ = 981824351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (981824429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490912239 + 490912240.

It is an arithmetic number, because the mean of its divisors is an integer number (490912240).

Almost surely, 2^981824479 is an apocalyptic number.

981824479 is a deficient number, since it is larger than the sum of its proper divisors (1).

981824479 is an equidigital number, since it uses as much as digits as its factorization.

981824479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 52.

The square root of 981824479 is about 31334.0785567407. The cubic root of 981824479 is about 993.9044123069.

The spelling of 981824479 in words is "nine hundred eighty-one million, eight hundred twenty-four thousand, four hundred seventy-nine".