988013 has 4 divisors (see below), whose sum is σ = 1064028. Its totient is φ = 912000.

The previous prime is 988007. The next prime is 988021. The reversal of 988013 is 310889.

It is a happy number.

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 413449 + 574564 = 643^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 988013 - 2⁴ = 987997 is a prime.

It is a Duffinian number.

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 988013.

It is not an unprimeable number, because it can be changed into a prime (988033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37988 + ... + 38013.

It is an arithmetic number, because the mean of its divisors is an integer number (266007).

2⁹⁸⁸⁰¹³ is an apocalyptic number.

It is an amenable number.

988013 is a deficient number, since it is larger than the sum of its proper divisors (76015).

988013 is a wasteful number, since it uses less digits than its factorization.

988013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76014.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 988013 is about 993.9884305162. The cubic root of 988013 is about 99.5988260804.

The spelling of 988013 in words is "nine hundred eighty-eight thousand, thirteen".