3497729 has 6 divisors (see below), whose sum is σ = 3691890. Its totient is φ = 3313296.

The previous prime is 3497717. The next prime is 3497743. The reversal of 3497729 is 9277943.

3497729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3055504 + 442225 = 1748^2 + 665^2 .

It is not a de Polignac number, because 3497729 - 2⁴ = 3497713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3497759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4484 + ... + 5205.

It is an arithmetic number, because the mean of its divisors is an integer number (615315).

Almost surely, 2^3497729 is an apocalyptic number.

It is an amenable number.

3497729 is a deficient number, since it is larger than the sum of its proper divisors (194161).

3497729 is an equidigital number, since it uses as much as digits as its factorization.

3497729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727 (or 9708 counting only the distinct ones).

The product of its digits is 95256, while the sum is 41.

The square root of 3497729 is about 1870.2216446186. The cubic root of 3497729 is about 151.7966029480.

The spelling of 3497729 in words is "three million, four hundred ninety-seven thousand, seven hundred twenty-nine".