1088981 has 8 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 1029952.

The previous prime is 1088977. The next prime is 1088987. The reversal of 1088981 is 1898801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1088981 - 2² = 1088977 is a prime.

It is a super-2 number, since 2×1088981² = 2371759236722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088987) 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 7 ways as a sum of consecutive naturals, for example, 2390 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^1088981 is an apocalyptic number.

It is an amenable number.

1088981 is a deficient number, since it is larger than the sum of its proper divisors (60139).

1088981 is a wasteful number, since it uses less digits than its factorization.

1088981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555.

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 1088981 is about 1043.5425242893. The cubic root of 1088981 is about 102.8821664388.

The spelling of 1088981 in words is "one million, eighty-eight thousand, nine hundred eighty-one".