988644941 has 2 divisors, whose sum is σ = 988644942. Its totient is φ = 988644940.

The previous prime is 988644929. The next prime is 988644961. The reversal of 988644941 is 149446889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711555625 + 277089316 = 26675^2 + 16646^2 .

It is a cyclic number.

It is not a de Polignac number, because 988644941 - 2¹⁸ = 988382797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988644961) 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, 494322470 + 494322471.

It is an arithmetic number, because the mean of its divisors is an integer number (494322471).

Almost surely, 2^988644941 is an apocalyptic number.

It is an amenable number.

988644941 is a deficient number, since it is larger than the sum of its proper divisors (1).

988644941 is an equidigital number, since it uses as much as digits as its factorization.

988644941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 53.

The square root of 988644941 is about 31442.7247706047. The cubic root of 988644941 is about 996.2005628935.

The spelling of 988644941 in words is "nine hundred eighty-eight million, six hundred forty-four thousand, nine hundred forty-one".