3429649 has 4 divisors (see below), whose sum is σ = 3440164. Its totient is φ = 3419136.

The previous prime is 3429619. The next prime is 3429653. The reversal of 3429649 is 9469243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9469243 = 7 ⋅1352749.

It can be written as a sum of positive squares in 2 ways, for example, as 1580049 + 1849600 = 1257^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 3429649 - 2⁵ = 3429617 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 4 + 2¹⁹ + 9 + 6⁸ + 4¹⁰ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3429619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4752 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (860041).

Almost surely, 2^3429649 is an apocalyptic number.

It is an amenable number.

3429649 is a deficient number, since it is larger than the sum of its proper divisors (10515).

3429649 is a wasteful number, since it uses less digits than its factorization.

3429649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10514.

The product of its digits is 46656, while the sum is 37.

The square root of 3429649 is about 1851.9311542279. The cubic root of 3429649 is about 150.8052838643.

The spelling of 3429649 in words is "three million, four hundred twenty-nine thousand, six hundred forty-nine".