11170989 has 12 divisors (see below), whose sum is σ = 17085276. Its totient is φ = 7009152.

The previous prime is 11170987. The next prime is 11170997. The reversal of 11170989 is 98907111.

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 2350089 = 2970^2 + 1533^2 .

It is not a de Polignac number, because 11170989 - 2¹ = 11170987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11170981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36354 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (1423773).

Almost surely, 2^11170989 is an apocalyptic number.

It is an amenable number.

11170989 is a deficient number, since it is larger than the sum of its proper divisors (5914287).

11170989 is a wasteful number, since it uses less digits than its factorization.

11170989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73036 (or 73033 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 11170989 is about 3342.3029485671. The cubic root of 11170989 is about 223.5444411124.

The spelling of 11170989 in words is "eleven million, one hundred seventy thousand, nine hundred eighty-nine".