988699 has 4 divisors (see below), whose sum is σ = 1011736. Its totient is φ = 965664.

The previous prime is 988693. The next prime is 988711. The reversal of 988699 is 996889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 988699 - 2⁷ = 988571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11454 + ... + 11539.

It is an arithmetic number, because the mean of its divisors is an integer number (252934).

2⁹⁸⁸⁶⁹⁹ is an apocalyptic number.

988699 is a deficient number, since it is larger than the sum of its proper divisors (23037).

988699 is a wasteful number, since it uses less digits than its factorization.

988699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23036.

The product of its digits is 279936, while the sum is 49.

The square root of 988699 is about 994.3334450777. Note that the first 3 decimals coincide. The cubic root of 988699 is about 99.6218719943.

The spelling of 988699 in words is "nine hundred eighty-eight thousand, six hundred ninety-nine".