3388991 has 4 divisors (see below), whose sum is σ = 3406392. Its totient is φ = 3371592.

The previous prime is 3388963. The next prime is 3388993. The reversal of 3388991 is 1998833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1998833 = 653 ⋅3061.

It is a cyclic number.

It is not a de Polignac number, because 3388991 - 2¹⁸ = 3126847 is a prime.

It is a super-2 number, since 2×3388991² = 22970519996162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3388993) 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, 8405 + ... + 8798.

It is an arithmetic number, because the mean of its divisors is an integer number (851598).

Almost surely, 2^3388991 is an apocalyptic number.

3388991 is a deficient number, since it is larger than the sum of its proper divisors (17401).

3388991 is a wasteful number, since it uses less digits than its factorization.

3388991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400.

The product of its digits is 46656, while the sum is 41.

The square root of 3388991 is about 1840.9212367725. The cubic root of 3388991 is about 150.2069883149.

The spelling of 3388991 in words is "three million, three hundred eighty-eight thousand, nine hundred ninety-one".