3957316841 has 4 divisors (see below), whose sum is σ = 3957814272. Its totient is φ = 3956819412.

The previous prime is 3957316837. The next prime is 3957316859. The reversal of 3957316841 is 1486137593.

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 a cyclic number.

It is not a de Polignac number, because 3957316841 - 2² = 3957316837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3957316541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236585 + ... + 252758.

It is an arithmetic number, because the mean of its divisors is an integer number (989453568).

Almost surely, 2^3957316841 is an apocalyptic number.

It is an amenable number.

3957316841 is a deficient number, since it is larger than the sum of its proper divisors (497431).

3957316841 is an equidigital number, since it uses as much as digits as its factorization.

3957316841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497430.

The product of its digits is 544320, while the sum is 47.

The square root of 3957316841 is about 62907.2081799852. The cubic root of 3957316841 is about 1581.7345743624.

The spelling of 3957316841 in words is "three billion, nine hundred fifty-seven million, three hundred sixteen thousand, eight hundred forty-one".