3491331841 has 4 divisors (see below), whose sum is σ = 3495554352. Its totient is φ = 3487109332.

The previous prime is 3491331829. The next prime is 3491331859. The reversal of 3491331841 is 1481331943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3491331841 - 2²⁵ = 3457777409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3491331841.

It is not an unprimeable number, because it can be changed into a prime (3491331241) 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, 2110015 + ... + 2111668.

It is an arithmetic number, because the mean of its divisors is an integer number (873888588).

Almost surely, 2^3491331841 is an apocalyptic number.

It is an amenable number.

3491331841 is a deficient number, since it is larger than the sum of its proper divisors (4222511).

3491331841 is an equidigital number, since it uses as much as digits as its factorization.

3491331841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222510.

The product of its digits is 31104, while the sum is 37.

The square root of 3491331841 is about 59087.4931013324. The cubic root of 3491331841 is about 1517.0400385327.

The spelling of 3491331841 in words is "three billion, four hundred ninety-one million, three hundred thirty-one thousand, eight hundred forty-one".