12817470 has 16 divisors (see below), whose sum is σ = 30762000. Its totient is φ = 3417984.

The previous prime is 12817459. The next prime is 12817471. The reversal of 12817470 is 7471821.

12817470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 427249 = 12817470 / (1 + 2 + 8 + 1 + 7 + 4 + 7 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12817471) 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, 213595 + ... + 213654.

It is an arithmetic number, because the mean of its divisors is an integer number (1922625).

Almost surely, 2^12817470 is an apocalyptic number.

12817470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12817470 is an abundant number, since it is smaller than the sum of its proper divisors (17944530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12817470 is a wasteful number, since it uses less digits than its factorization.

12817470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427259.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 12817470 is about 3580.1494382218. The cubic root of 12817470 is about 234.0277927395.

The spelling of 12817470 in words is "twelve million, eight hundred seventeen thousand, four hundred seventy".