3957829845 has 16 divisors (see below), whose sum is σ = 6335609280. Its totient is φ = 2109815424.

The previous prime is 3957829819. The next prime is 3957829849. The reversal of 3957829845 is 5489287593.

It is not a de Polignac number, because 3957829845 - 2¹² = 3957825749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957829849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31819 + ... + 94488.

It is an arithmetic number, because the mean of its divisors is an integer number (395975580).

Almost surely, 2^3957829845 is an apocalyptic number.

It is an amenable number.

3957829845 is a deficient number, since it is larger than the sum of its proper divisors (2377779435).

3957829845 is a wasteful number, since it uses less digits than its factorization.

3957829845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128404.

The product of its digits is 21772800, while the sum is 60.

The square root of 3957829845 is about 62911.2855138090. The cubic root of 3957829845 is about 1581.8029204274.

The spelling of 3957829845 in words is "three billion, nine hundred fifty-seven million, eight hundred twenty-nine thousand, eight hundred forty-five".