988439 has 2 divisors, whose sum is σ = 988440. Its totient is φ = 988438.

The previous prime is 988417. The next prime is 988453. The reversal of 988439 is 934889.

It is a strong prime.

It is an emirp because it is prime and its reverse (934889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988396 and 988405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494219 + 494220.

It is an arithmetic number, because the mean of its divisors is an integer number (494220).

2⁹⁸⁸⁴³⁹ is an apocalyptic number.

988439 is a deficient number, since it is larger than the sum of its proper divisors (1).

988439 is an equidigital number, since it uses as much as digits as its factorization.

988439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 41.

The square root of 988439 is about 994.2026956310. The cubic root of 988439 is about 99.6131386462.

The spelling of 988439 in words is "nine hundred eighty-eight thousand, four hundred thirty-nine".