988408 has 8 divisors (see below), whose sum is σ = 1853280. Its totient is φ = 494200.

The previous prime is 988367. The next prime is 988409. The reversal of 988408 is 804889.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988409) 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 as a sum of consecutive naturals, namely, 61768 + ... + 61783.

It is an arithmetic number, because the mean of its divisors is an integer number (231660).

2⁹⁸⁸⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

988408 is a deficient number, since it is larger than the sum of its proper divisors (864872).

988408 is a wasteful number, since it uses less digits than its factorization.

988408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123557 (or 123553 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 988408 is about 994.1871051266. The cubic root of 988408 is about 99.6120972602.

The spelling of 988408 in words is "nine hundred eighty-eight thousand, four hundred eight".