11413987 has 8 divisors (see below), whose sum is σ = 13015296. Its totient is φ = 9916032.

The previous prime is 11413981. The next prime is 11413991. The reversal of 11413987 is 78931411.

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

It is not a de Polignac number, because 11413987 - 2¹⁵ = 11381219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11413981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25603 + ... + 26044.

It is an arithmetic number, because the mean of its divisors is an integer number (1626912).

Almost surely, 2^11413987 is an apocalyptic number.

11413987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11413987 is a deficient number, since it is larger than the sum of its proper divisors (1601309).

11413987 is a wasteful number, since it uses less digits than its factorization.

11413987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51677.

The product of its digits is 6048, while the sum is 34.

The square root of 11413987 is about 3378.4592642209. The cubic root of 11413987 is about 225.1537188245.

It can be divided in two parts, 11413 and 987, that multiplied together give a triangular number (11264631 = T₄₇₄₆).

The spelling of 11413987 in words is "eleven million, four hundred thirteen thousand, nine hundred eighty-seven".