3409391 has 4 divisors (see below), whose sum is σ = 3450552. Its totient is φ = 3368232.

The previous prime is 3409387. The next prime is 3409409. The reversal of 3409391 is 1939043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1939043 = 89 ⋅21787.

It is a cyclic number.

It is not a de Polignac number, because 3409391 - 2² = 3409387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3409321) 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, 20456 + ... + 20621.

It is an arithmetic number, because the mean of its divisors is an integer number (862638).

Almost surely, 2^3409391 is an apocalyptic number.

3409391 is a deficient number, since it is larger than the sum of its proper divisors (41161).

3409391 is an equidigital number, since it uses as much as digits as its factorization.

3409391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41160.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3409391 is about 1846.4536279040. The cubic root of 3409391 is about 150.5077754506.

The spelling of 3409391 in words is "three million, four hundred nine thousand, three hundred ninety-one".