988081 has 4 divisors (see below), whose sum is σ = 1009152. Its totient is φ = 967012.

The previous prime is 988069. The next prime is 988093. The reversal of 988081 is 180889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180889 = 53 ⋅3413.

It is an interprime number because it is at equal distance from previous prime (988069) and next prime (988093).

It is a cyclic number.

It is not a de Polignac number, because 988081 - 2¹³ = 979889 is a prime.

It is a super-2 number, since 2×988081² = 1952608125122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988021) 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, 10465 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (252288).

2⁹⁸⁸⁰⁸¹ is an apocalyptic number.

It is an amenable number.

988081 is a deficient number, since it is larger than the sum of its proper divisors (21071).

988081 is a wasteful number, since it uses less digits than its factorization.

988081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21070.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 988081 is about 994.0226355572. The cubic root of 988081 is about 99.6011109912.

The spelling of 988081 in words is "nine hundred eighty-eight thousand, eighty-one".