3994575413 has 4 divisors (see below), whose sum is σ = 3994703328. Its totient is φ = 3994447500.

The previous prime is 3994575397. The next prime is 3994575421. The reversal of 3994575413 is 3145754993.

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, 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 3994575413 - 2⁴ = 3994575397 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 (3994575313) 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, 17288 + ... + 91038.

It is an arithmetic number, because the mean of its divisors is an integer number (998675832).

Almost surely, 2^3994575413 is an apocalyptic number.

It is an amenable number.

3994575413 is a deficient number, since it is larger than the sum of its proper divisors (127915).

3994575413 is an equidigital number, since it uses as much as digits as its factorization.

3994575413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127914.

The product of its digits is 2041200, while the sum is 50.

The square root of 3994575413 is about 63202.6535281550. The cubic root of 3994575413 is about 1586.6831444151.

The spelling of 3994575413 in words is "three billion, nine hundred ninety-four million, five hundred seventy-five thousand, four hundred thirteen".