11987386 has 4 divisors (see below), whose sum is σ = 17981082. Its totient is φ = 5993692.

The previous prime is 11987377. The next prime is 11987401. The reversal of 11987386 is 68378911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9114361 + 2873025 = 3019^2 + 1695^2 .

It is a super-2 number, since 2×11987386² = 287394846225992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2996845 + ... + 2996848.

Almost surely, 2^11987386 is an apocalyptic number.

11987386 is a deficient number, since it is larger than the sum of its proper divisors (5993696).

11987386 is an equidigital number, since it uses as much as digits as its factorization.

11987386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5993695.

The product of its digits is 72576, while the sum is 43.

The square root of 11987386 is about 3462.2804623543. The cubic root of 11987386 is about 228.8626013561.

The spelling of 11987386 in words is "eleven million, nine hundred eighty-seven thousand, three hundred eighty-six".