8412729 has 16 divisors (see below), whose sum is σ = 12196800. Its totient is φ = 5126976.

The previous prime is 8412709. The next prime is 8412769. The reversal of 8412729 is 9272148.

It is a happy number.

8412729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8412729 - 2¹¹ = 8410681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8412729.

It is not an unprimeable number, because it can be changed into a prime (8412709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (762300).

Almost surely, 2^8412729 is an apocalyptic number.

It is an amenable number.

8412729 is a deficient number, since it is larger than the sum of its proper divisors (3784071).

8412729 is a wasteful number, since it uses less digits than its factorization.

8412729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its digits is 8064, while the sum is 33.

The square root of 8412729 is about 2900.4704790775. The cubic root of 8412729 is about 203.3818997728.

It can be divided in two parts, 841 and 2729, that added together give a triangular number (3570 = T₈₄).

The spelling of 8412729 in words is "eight million, four hundred twelve thousand, seven hundred twenty-nine".