3399691 has 4 divisors (see below), whose sum is σ = 3420712. Its totient is φ = 3378672.

The previous prime is 3399673. The next prime is 3399707. The reversal of 3399691 is 1969933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1969933 = 7 ⋅281419.

It is a cyclic number.

It is not a de Polignac number, because 3399691 - 2⁵ = 3399659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3399631) 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, 10266 + ... + 10591.

It is an arithmetic number, because the mean of its divisors is an integer number (855178).

Almost surely, 2^3399691 is an apocalyptic number.

3399691 is a deficient number, since it is larger than the sum of its proper divisors (21021).

3399691 is a wasteful number, since it uses less digits than its factorization.

3399691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020.

The product of its digits is 39366, while the sum is 40.

The square root of 3399691 is about 1843.8251001654. The cubic root of 3399691 is about 150.3649041724.

The spelling of 3399691 in words is "three million, three hundred ninety-nine thousand, six hundred ninety-one".