3429739 has 4 divisors (see below), whose sum is σ = 3434080. Its totient is φ = 3425400.

The previous prime is 3429721. The next prime is 3429749. The reversal of 3429739 is 9379243.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9379243 = 1499 ⋅6257.

It is a cyclic number.

It is not a de Polignac number, because 3429739 - 2¹¹ = 3427691 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 3429698 and 3429707.

It is not an unprimeable number, because it can be changed into a prime (3429749) 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, 612 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (858520).

Almost surely, 2^3429739 is an apocalyptic number.

3429739 is a deficient number, since it is larger than the sum of its proper divisors (4341).

3429739 is a wasteful number, since it uses less digits than its factorization.

3429739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340.

The product of its digits is 40824, while the sum is 37.

The square root of 3429739 is about 1851.9554530280. The cubic root of 3429739 is about 150.8066029844.

The spelling of 3429739 in words is "three million, four hundred twenty-nine thousand, seven hundred thirty-nine".