12011487 has 8 divisors (see below), whose sum is σ = 16032000. Its totient is φ = 7999320.

The previous prime is 12011471. The next prime is 12011501. The reversal of 12011487 is 78411021.

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

It is not a de Polignac number, because 12011487 - 2⁴ = 12011471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162 + ... + 5832.

It is an arithmetic number, because the mean of its divisors is an integer number (2004000).

Almost surely, 2^12011487 is an apocalyptic number.

12011487 is a deficient number, since it is larger than the sum of its proper divisors (4020513).

12011487 is a wasteful number, since it uses less digits than its factorization.

12011487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 12011487 is about 3465.7592241816. The cubic root of 12011487 is about 229.0158770607.

The spelling of 12011487 in words is "twelve million, eleven thousand, four hundred eighty-seven".