988445 has 4 divisors (see below), whose sum is σ = 1186140. Its totient is φ = 790752.

The previous prime is 988439. The next prime is 988453. The reversal of 988445 is 544889.

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

It can be written as a sum of positive squares in 2 ways, for example, as 605284 + 383161 = 778^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 988445 - 2¹² = 984349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988399 and 988408.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 988445.

It is an unprimeable number.

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, 98840 + ... + 98849.

It is an arithmetic number, because the mean of its divisors is an integer number (296535).

2⁹⁸⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

988445 is a deficient number, since it is larger than the sum of its proper divisors (197695).

988445 is a wasteful number, since it uses less digits than its factorization.

988445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197694.

The product of its digits is 46080, while the sum is 38.

The square root of 988445 is about 994.2057131198. The cubic root of 988445 is about 99.6133402023.

Subtracting from 988445 its reverse (544889), we obtain a square (443556 = 666²).

The spelling of 988445 in words is "nine hundred eighty-eight thousand, four hundred forty-five".