12488691 has 8 divisors (see below), whose sum is σ = 17188864. Its totient is φ = 8057160.

The previous prime is 12488689. The next prime is 12488711. The reversal of 12488691 is 19688421.

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

It is not a de Polignac number, because 12488691 - 2¹ = 12488689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12488611) 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, 67051 + ... + 67236.

It is an arithmetic number, because the mean of its divisors is an integer number (2148608).

Almost surely, 2^12488691 is an apocalyptic number.

12488691 is a deficient number, since it is larger than the sum of its proper divisors (4700173).

12488691 is a wasteful number, since it uses less digits than its factorization.

12488691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134321.

The product of its digits is 27648, while the sum is 39.

The square root of 12488691 is about 3533.9342099139. The cubic root of 12488691 is about 232.0094315924.

The spelling of 12488691 in words is "twelve million, four hundred eighty-eight thousand, six hundred ninety-one".