3994724913 has 8 divisors (see below), whose sum is σ = 5326672800. Its totient is φ = 2662963488.

The previous prime is 3994724879. The next prime is 3994724917. The reversal of 3994724913 is 3194274993.

3994724913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3994724913 - 2⁹ = 3994724401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3994724917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15018 + ... + 90636.

It is an arithmetic number, because the mean of its divisors is an integer number (665834100).

Almost surely, 2^3994724913 is an apocalyptic number.

It is an amenable number.

3994724913 is a deficient number, since it is larger than the sum of its proper divisors (1331947887).

3994724913 is a wasteful number, since it uses less digits than its factorization.

3994724913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93231.

The product of its digits is 1469664, while the sum is 51.

The square root of 3994724913 is about 63203.8362205966. The cubic root of 3994724913 is about 1586.7029384397.

The spelling of 3994724913 in words is "three billion, nine hundred ninety-four million, seven hundred twenty-four thousand, nine hundred thirteen".