3399991 has 8 divisors (see below), whose sum is σ = 3907584. Its totient is φ = 2897880.

The previous prime is 3399973. The next prime is 3399997. The reversal of 3399991 is 1999933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3399991 - 2⁵ = 3399959 is a prime.

It is a Duffinian number.

3399991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3399997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 2608.

It is an arithmetic number, because the mean of its divisors is an integer number (488448).

Almost surely, 2^3399991 is an apocalyptic number.

3399991 is a deficient number, since it is larger than the sum of its proper divisors (507593).

3399991 is a wasteful number, since it uses less digits than its factorization.

3399991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741.

The product of its digits is 59049, while the sum is 43.

The square root of 3399991 is about 1843.9064509893. The cubic root of 3399991 is about 150.3693269414.

The spelling of 3399991 in words is "three million, three hundred ninety-nine thousand, nine hundred ninety-one".