988428983 has 2 divisors, whose sum is σ = 988428984. Its totient is φ = 988428982.

The previous prime is 988428971. The next prime is 988428997. The reversal of 988428983 is 389824889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988428983 - 2¹⁴ = 988412599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988428913) 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, 494214491 + 494214492.

It is an arithmetic number, because the mean of its divisors is an integer number (494214492).

Almost surely, 2^988428983 is an apocalyptic number.

988428983 is a deficient number, since it is larger than the sum of its proper divisors (1).

988428983 is an equidigital number, since it uses as much as digits as its factorization.

988428983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7962624, while the sum is 59.

The square root of 988428983 is about 31439.2904341049. The cubic root of 988428983 is about 996.1280214654.

The spelling of 988428983 in words is "nine hundred eighty-eight million, four hundred twenty-eight thousand, nine hundred eighty-three".