12415716 has 36 divisors (see below), whose sum is σ = 31505292. Its totient is φ = 4122624.

The previous prime is 12415681. The next prime is 12415801. The reversal of 12415716 is 61751421.

12415716 = 124² + 125² + ... + 339².

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 3594816 = 2970^2 + 1896^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12415716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12220 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (875147).

Almost surely, 2^12415716 is an apocalyptic number.

It is an amenable number.

12415716 is an abundant number, since it is smaller than the sum of its proper divisors (19089576).

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

12415716 is a wasteful number, since it uses less digits than its factorization.

12415716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1335 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 12415716 is about 3523.5941877577. The cubic root of 12415716 is about 231.5566493356.

It can be divided in two parts, 12415 and 716, that added together give a palindrome (13131).

The spelling of 12415716 in words is "twelve million, four hundred fifteen thousand, seven hundred sixteen".