12902471 has 4 divisors (see below), whose sum is σ = 13463472. Its totient is φ = 12341472.

The previous prime is 12902437. The next prime is 12902489. The reversal of 12902471 is 17420921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12902471 is a prime.

It is a super-3 number, since 3×12902471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12902471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12902401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280466 + ... + 280511.

It is an arithmetic number, because the mean of its divisors is an integer number (3365868).

Almost surely, 2^12902471 is an apocalyptic number.

12902471 is a deficient number, since it is larger than the sum of its proper divisors (561001).

12902471 is an equidigital number, since it uses as much as digits as its factorization.

12902471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561000.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12902471 is about 3592.0009743874. Note that the first 3 decimals coincide. The cubic root of 12902471 is about 234.5439836392.

The spelling of 12902471 in words is "twelve million, nine hundred two thousand, four hundred seventy-one".