3406729 has 2 divisors, whose sum is σ = 3406730. Its totient is φ = 3406728.

The previous prime is 3406727. The next prime is 3406747. The reversal of 3406729 is 9276043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3404025 + 2704 = 1845^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 3406729 - 2¹ = 3406727 is a prime.

Together with 3406727, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3406729.

It is not a weakly prime, because it can be changed into another prime (3406723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1703364 + 1703365.

It is an arithmetic number, because the mean of its divisors is an integer number (1703365).

Almost surely, 2^3406729 is an apocalyptic number.

It is an amenable number.

3406729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3406729 is an equidigital number, since it uses as much as digits as its factorization.

3406729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 3406729 is about 1845.7326458618. The cubic root of 3406729 is about 150.4685938668.

The spelling of 3406729 in words is "three million, four hundred six thousand, seven hundred twenty-nine".