988632899 has 2 divisors, whose sum is σ = 988632900. Its totient is φ = 988632898.

The previous prime is 988632863. The next prime is 988632937. The reversal of 988632899 is 998236889.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-988632899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (988602899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494316449 + 494316450.

It is an arithmetic number, because the mean of its divisors is an integer number (494316450).

Almost surely, 2^988632899 is an apocalyptic number.

988632899 is a deficient number, since it is larger than the sum of its proper divisors (1).

988632899 is an equidigital number, since it uses as much as digits as its factorization.

988632899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13436928, while the sum is 62.

The square root of 988632899 is about 31442.5332789837. The cubic root of 988632899 is about 996.1965182005.

The spelling of 988632899 in words is "nine hundred eighty-eight million, six hundred thirty-two thousand, eight hundred ninety-nine".