11043987 has 8 divisors (see below), whose sum is σ = 14741760. Its totient is φ = 7354440.

The previous prime is 11043973. The next prime is 11044001. The reversal of 11043987 is 78934011.

11043987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11043973) and next prime (11044001).

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

It is not a de Polignac number, because 11043987 - 2⁷ = 11043859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11043937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2562 + ... + 5352.

It is an arithmetic number, because the mean of its divisors is an integer number (1842720).

Almost surely, 2^11043987 is an apocalyptic number.

11043987 is a deficient number, since it is larger than the sum of its proper divisors (3697773).

11043987 is a wasteful number, since it uses less digits than its factorization.

11043987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 11043987 is about 3323.2494640036. The cubic root of 11043987 is about 222.6940578592.

Adding to 11043987 its reverse (78934011), we get a palindrome (89977998).

The spelling of 11043987 in words is "eleven million, forty-three thousand, nine hundred eighty-seven".