3491243 has 4 divisors (see below), whose sum is σ = 3990000. Its totient is φ = 2992488.

The previous prime is 3491237. The next prime is 3491249. The reversal of 3491243 is 3421943.

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

It is an interprime number because it is at equal distance from previous prime (3491237) and next prime (3491249).

It is a cyclic number.

It is not a de Polignac number, because 3491243 - 2⁴ = 3491227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3491249) 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, 249368 + ... + 249381.

It is an arithmetic number, because the mean of its divisors is an integer number (997500).

Almost surely, 2^3491243 is an apocalyptic number.

3491243 is a deficient number, since it is larger than the sum of its proper divisors (498757).

3491243 is an equidigital number, since it uses as much as digits as its factorization.

3491243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498756.

The product of its digits is 2592, while the sum is 26.

The square root of 3491243 is about 1868.4868209329. The cubic root of 3491243 is about 151.7027170807.

The spelling of 3491243 in words is "three million, four hundred ninety-one thousand, two hundred forty-three".