12690471 has 8 divisors (see below), whose sum is σ = 16942720. Its totient is φ = 8449272.

The previous prime is 12690463. The next prime is 12690473. The reversal of 12690471 is 17409621.

It is a happy number.

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

It is not a de Polignac number, because 12690471 - 2³ = 12690463 is a prime.

It is a super-3 number, since 3×12690471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456 + ... + 5058.

It is an arithmetic number, because the mean of its divisors is an integer number (2117840).

Almost surely, 2^12690471 is an apocalyptic number.

12690471 is a deficient number, since it is larger than the sum of its proper divisors (4252249).

12690471 is an equidigital number, since it uses as much as digits as its factorization.

12690471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 12690471 is about 3562.3687344238. The cubic root of 12690471 is about 233.2522886337.

The spelling of 12690471 in words is "twelve million, six hundred ninety thousand, four hundred seventy-one".