3391663 has 4 divisors (see below), whose sum is σ = 3700008. Its totient is φ = 3083320.

The previous prime is 3391657. The next prime is 3391667. The reversal of 3391663 is 3661933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3661933 = 11 ⋅332903.

It is a cyclic number.

It is not a de Polignac number, because 3391663 - 2⁵ = 3391631 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 (3391667) 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, 154156 + ... + 154177.

It is an arithmetic number, because the mean of its divisors is an integer number (925002).

Almost surely, 2^3391663 is an apocalyptic number.

3391663 is a deficient number, since it is larger than the sum of its proper divisors (308345).

3391663 is a wasteful number, since it uses less digits than its factorization.

3391663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308344.

The product of its digits is 8748, while the sum is 31.

The square root of 3391663 is about 1841.6468173893. The cubic root of 3391663 is about 150.2464541066.

It can be divided in two parts, 339 and 1663, that added together give a palindrome (2002).

The spelling of 3391663 in words is "three million, three hundred ninety-one thousand, six hundred sixty-three".