11487747 has 8 divisors (see below), whose sum is σ = 15381520. Its totient is φ = 7626240.

The previous prime is 11487739. The next prime is 11487757. The reversal of 11487747 is 74778411.

11487747 is digitally balanced in base 3, 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 not a de Polignac number, because 11487747 - 2³ = 11487739 is a prime.

It is a super-2 number, since 2×11487747² = 263936662272018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11487737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7222 + ... + 8667.

It is an arithmetic number, because the mean of its divisors is an integer number (1922690).

Almost surely, 2^11487747 is an apocalyptic number.

11487747 is a deficient number, since it is larger than the sum of its proper divisors (3893773).

11487747 is a wasteful number, since it uses less digits than its factorization.

11487747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16133.

The product of its digits is 43904, while the sum is 39.

The square root of 11487747 is about 3389.3579037924. The cubic root of 11487747 is about 225.6376774567.

The spelling of 11487747 in words is "eleven million, four hundred eighty-seven thousand, seven hundred forty-seven".