3391291 has 4 divisors (see below), whose sum is σ = 3569800. Its totient is φ = 3212784.

The previous prime is 3391237. The next prime is 3391301. The reversal of 3391291 is 1921933.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3391291 - 2⁷ = 3391163 is a prime.

It is a Duffinian number.

3391291 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3391991) 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, 89226 + ... + 89263.

It is an arithmetic number, because the mean of its divisors is an integer number (892450).

Almost surely, 2^3391291 is an apocalyptic number.

3391291 is a deficient number, since it is larger than the sum of its proper divisors (178509).

3391291 is a wasteful number, since it uses less digits than its factorization.

3391291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178508.

The product of its digits is 1458, while the sum is 28.

The square root of 3391291 is about 1841.5458180561. The cubic root of 3391291 is about 150.2409608600.

Subtracting from 3391291 its product of digits (1458), we obtain a palindrome (3389833).

The spelling of 3391291 in words is "three million, three hundred ninety-one thousand, two hundred ninety-one".