988511 has 2 divisors, whose sum is σ = 988512. Its totient is φ = 988510.

The previous prime is 988501. The next prime is 988541. The reversal of 988511 is 115889.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 988511 - 2¹⁸ = 726367 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494255 + 494256.

It is an arithmetic number, because the mean of its divisors is an integer number (494256).

2⁹⁸⁸⁵¹¹ is an apocalyptic number.

988511 is a deficient number, since it is larger than the sum of its proper divisors (1).

988511 is an equidigital number, since it uses as much as digits as its factorization.

988511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 32.

The square root of 988511 is about 994.2389048916. The cubic root of 988511 is about 99.6155572651.

The spelling of 988511 in words is "nine hundred eighty-eight thousand, five hundred eleven".