988887499 has 2 divisors, whose sum is σ = 988887500. Its totient is φ = 988887498.

The previous prime is 988887491. The next prime is 988887517. The reversal of 988887499 is 994788889.

It is a weak prime.

It is an emirp because it is prime and its reverse (994788889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988887499 - 2³ = 988887491 is a prime.

It is a super-3 number, since 3×988887499³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (988887491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494443749 + 494443750.

It is an arithmetic number, because the mean of its divisors is an integer number (494443750).

Almost surely, 2^988887499 is an apocalyptic number.

988887499 is a deficient number, since it is larger than the sum of its proper divisors (1).

988887499 is an equidigital number, since it uses as much as digits as its factorization.

988887499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 70.

The square root of 988887499 is about 31446.5816743251. The cubic root of 988887499 is about 996.2820268069.

The spelling of 988887499 in words is "nine hundred eighty-eight million, eight hundred eighty-seven thousand, four hundred ninety-nine".