988627859 has 2 divisors, whose sum is σ = 988627860. Its totient is φ = 988627858.

The previous prime is 988627841. The next prime is 988627873. The reversal of 988627859 is 958726889.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988627859 is a prime.

It is not a weakly prime, because it can be changed into another prime (988627819) 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, 494313929 + 494313930.

It is an arithmetic number, because the mean of its divisors is an integer number (494313930).

Almost surely, 2^988627859 is an apocalyptic number.

988627859 is a deficient number, since it is larger than the sum of its proper divisors (1).

988627859 is an equidigital number, since it uses as much as digits as its factorization.

988627859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 62.

The square root of 988627859 is about 31442.4531326676. The cubic root of 988627859 is about 996.1948253447.

The spelling of 988627859 in words is "nine hundred eighty-eight million, six hundred twenty-seven thousand, eight hundred fifty-nine".