988579387 has 2 divisors, whose sum is σ = 988579388. Its totient is φ = 988579386.

The previous prime is 988579381. The next prime is 988579421. The reversal of 988579387 is 783975889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988579387 - 2²³ = 980190779 is a prime.

It is not a weakly prime, because it can be changed into another prime (988579381) 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, 494289693 + 494289694.

It is an arithmetic number, because the mean of its divisors is an integer number (494289694).

Almost surely, 2^988579387 is an apocalyptic number.

988579387 is a deficient number, since it is larger than the sum of its proper divisors (1).

988579387 is an equidigital number, since it uses as much as digits as its factorization.

988579387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 64.

The square root of 988579387 is about 31441.6823182221. The cubic root of 988579387 is about 996.1785440769.

The spelling of 988579387 in words is "nine hundred eighty-eight million, five hundred seventy-nine thousand, three hundred eighty-seven".