3431991343 has 8 divisors (see below), whose sum is σ = 3745648080. Its totient is φ = 3118610880.

The previous prime is 3431991323. The next prime is 3431991347.

3431991343 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3431991343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3431991296 and 3431991305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431991347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42648 + ... + 93181.

It is an arithmetic number, because the mean of its divisors is an integer number (468206010).

Almost surely, 2^3431991343 is an apocalyptic number.

3431991343 is a deficient number, since it is larger than the sum of its proper divisors (313656737).

3431991343 is a wasteful number, since it uses less digits than its factorization.

3431991343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138137.

The product of its digits is 104976, while the sum is 40.

The square root of 3431991343 is about 58583.2001771839. The cubic root of 3431991343 is about 1508.3960781553.

The spelling of 3431991343 in words is "three billion, four hundred thirty-one million, nine hundred ninety-one thousand, three hundred forty-three".