10887986 has 4 divisors (see below), whose sum is σ = 16331982. Its totient is φ = 5443992.

The previous prime is 10887983. The next prime is 10887997. The reversal of 10887986 is 68978801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68978801 = 6673 ⋅10337.

It can be written as a sum of positive squares in only one way, i.e., 7946761 + 2941225 = 2819^2 + 1715^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10887986.

It is not an unprimeable number, because it can be changed into a prime (10887983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721995 + ... + 2721998.

Almost surely, 2^10887986 is an apocalyptic number.

10887986 is a deficient number, since it is larger than the sum of its proper divisors (5443996).

10887986 is an equidigital number, since it uses as much as digits as its factorization.

10887986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443995.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 10887986 is about 3299.6948343748. The cubic root of 10887986 is about 221.6405323427.

The spelling of 10887986 in words is "ten million, eight hundred eighty-seven thousand, nine hundred eighty-six".