3403749 has 4 divisors (see below), whose sum is σ = 4538336. Its totient is φ = 2269164.

The previous prime is 3403733. The next prime is 3403783. The reversal of 3403749 is 9473043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3403749 - 2⁴ = 3403733 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3403789) 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, 567289 + ... + 567294.

It is an arithmetic number, because the mean of its divisors is an integer number (1134584).

Almost surely, 2^3403749 is an apocalyptic number.

It is an amenable number.

3403749 is a deficient number, since it is larger than the sum of its proper divisors (1134587).

3403749 is a wasteful number, since it uses less digits than its factorization.

3403749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134586.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3403749 is about 1844.9252017358. The cubic root of 3403749 is about 150.4247074666.

The spelling of 3403749 in words is "three million, four hundred three thousand, seven hundred forty-nine".