3391678943 has 4 divisors (see below), whose sum is σ = 3391811280. Its totient is φ = 3391546608.

The previous prime is 3391678937. The next prime is 3391678973. The reversal of 3391678943 is 3498761933.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3391678943 - 2²⁶ = 3324570079 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 (3391678973) 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, 14030 + ... + 83547.

It is an arithmetic number, because the mean of its divisors is an integer number (847952820).

Almost surely, 2^3391678943 is an apocalyptic number.

3391678943 is a deficient number, since it is larger than the sum of its proper divisors (132337).

3391678943 is an equidigital number, since it uses as much as digits as its factorization.

3391678943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132336.

The product of its digits is 2939328, while the sum is 53.

The square root of 3391678943 is about 58238.1227633584. The cubic root of 3391678943 is about 1502.4668952463.

The spelling of 3391678943 in words is "three billion, three hundred ninety-one million, six hundred seventy-eight thousand, nine hundred forty-three".