988632013 has 2 divisors, whose sum is σ = 988632014. Its totient is φ = 988632012.

The previous prime is 988631999. The next prime is 988632017. The reversal of 988632013 is 310236889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 978250729 + 10381284 = 31277^2 + 3222^2 .

It is an emirp because it is prime and its reverse (310236889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988632013 - 2²⁵ = 955077581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988632017) 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, 494316006 + 494316007.

It is an arithmetic number, because the mean of its divisors is an integer number (494316007).

Almost surely, 2^988632013 is an apocalyptic number.

It is an amenable number.

988632013 is a deficient number, since it is larger than the sum of its proper divisors (1).

988632013 is an equidigital number, since it uses as much as digits as its factorization.

988632013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 988632013 is about 31442.5191897850. The cubic root of 988632013 is about 996.1962206076.

The spelling of 988632013 in words is "nine hundred eighty-eight million, six hundred thirty-two thousand, thirteen".