3994113601 has 3 divisors (see below), whose sum is σ = 3994176801. Its totient is φ = 3994050402.

The previous prime is 3994113593. The next prime is 3994113611. The reversal of 3994113601 is 1063114993.

The square root of 3994113601 is 63199.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1063114993 = 23 ⋅46222391.

It is not a de Polignac number, because 3994113601 - 2³ = 3994113593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994113611) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 31600 + ... + 94798.

It is an arithmetic number, because the mean of its divisors is an integer number (1331392267).

Almost surely, 2^3994113601 is an apocalyptic number.

3994113601 is the 63199-th square number.

3994113601 is the 31600-th centered octagonal number.

It is an amenable number.

3994113601 is a deficient number, since it is larger than the sum of its proper divisors (63200).

3994113601 is an frugal number, since it uses more digits than its factorization.

3994113601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126398 (or 63199 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The cubic root of 3994113601 is about 1586.6219966935.

The spelling of 3994113601 in words is "three billion, nine hundred ninety-four million, one hundred thirteen thousand, six hundred one".