3934781841 has 4 divisors (see below), whose sum is σ = 5246375792. Its totient is φ = 2623187892.

The previous prime is 3934781789. The next prime is 3934781867. The reversal of 3934781841 is 1481874393.

It is a happy number.

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 not a de Polignac number, because 3934781841 - 2⁹ = 3934781329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3934781891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655796971 + ... + 655796976.

It is an arithmetic number, because the mean of its divisors is an integer number (1311593948).

Almost surely, 2^3934781841 is an apocalyptic number.

It is an amenable number.

3934781841 is a deficient number, since it is larger than the sum of its proper divisors (1311593951).

3934781841 is a wasteful number, since it uses less digits than its factorization.

3934781841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311593950.

The product of its digits is 580608, while the sum is 48.

The square root of 3934781841 is about 62727.8394415111. The cubic root of 3934781841 is about 1578.7264534478.

The spelling of 3934781841 in words is "three billion, nine hundred thirty-four million, seven hundred eighty-one thousand, eight hundred forty-one".