1000988 has 12 divisors (see below), whose sum is σ = 1760472. Its totient is φ = 498000.

The previous prime is 1000981. The next prime is 1000999. The reversal of 1000988 is 8890001.

1000988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1000988² = 2003953952288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000981) 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, 506 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (146706).

2^1000988 is an apocalyptic number.

It is an amenable number.

1000988 is a deficient number, since it is larger than the sum of its proper divisors (759484).

1000988 is a wasteful number, since it uses less digits than its factorization.

1000988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1000988 is about 1000.4938780422. The cubic root of 1000988 is about 100.0329224932.

Adding to 1000988 its reverse (8890001), we get a palindrome (9890989).

The spelling of 1000988 in words is "one million, nine hundred eighty-eight", and thus it is an aban number.