11196987 has 16 divisors (see below), whose sum is σ = 15552000. Its totient is φ = 7157024.

The previous prime is 11196953. The next prime is 11196989. The reversal of 11196987 is 78969111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11196987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11196989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15214 + ... + 15932.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 2^11196987 is an apocalyptic number.

11196987 is a deficient number, since it is larger than the sum of its proper divisors (4355013).

11196987 is a wasteful number, since it uses less digits than its factorization.

11196987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its digits is 27216, while the sum is 42.

The square root of 11196987 is about 3346.1899228824. The cubic root of 11196987 is about 223.7177234634.

The spelling of 11196987 in words is "eleven million, one hundred ninety-six thousand, nine hundred eighty-seven".