988688497 has 2 divisors, whose sum is σ = 988688498. Its totient is φ = 988688496.

The previous prime is 988688483. The next prime is 988688527. The reversal of 988688497 is 794886889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517972081 + 470716416 = 22759^2 + 21696^2 .

It is a cyclic number.

It is not a de Polignac number, because 988688497 - 2⁷ = 988688369 is a prime.

It is not a weakly prime, because it can be changed into another prime (988685497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494344248 + 494344249.

It is an arithmetic number, because the mean of its divisors is an integer number (494344249).

Almost surely, 2^988688497 is an apocalyptic number.

It is an amenable number.

988688497 is a deficient number, since it is larger than the sum of its proper divisors (1).

988688497 is an equidigital number, since it uses as much as digits as its factorization.

988688497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 67.

The square root of 988688497 is about 31443.4173874278. The cubic root of 988688497 is about 996.2151923029.

The spelling of 988688497 in words is "nine hundred eighty-eight million, six hundred eighty-eight thousand, four hundred ninety-seven".