11023987 has 8 divisors (see below), whose sum is σ = 11988704. Its totient is φ = 10075968.

The previous prime is 11023963. The next prime is 11023993. The reversal of 11023987 is 78932011.

11023987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11023987 - 2¹¹ = 11021939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11023907) 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, 2778 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (1498588).

Almost surely, 2^11023987 is an apocalyptic number.

11023987 is a deficient number, since it is larger than the sum of its proper divisors (964717).

11023987 is a wasteful number, since it uses less digits than its factorization.

11023987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 11023987 is about 3320.2389974217. The cubic root of 11023987 is about 222.5595480897.

Adding to 11023987 its reverse (78932011), we get a palindrome (89955998).

The spelling of 11023987 in words is "eleven million, twenty-three thousand, nine hundred eighty-seven".