3913913 has 4 divisors (see below), whose sum is σ = 3918720. Its totient is φ = 3909108.

The previous prime is 3913907. The next prime is 3913963. The reversal of 3913913 is 3193193.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3193193 = 271 ⋅11783.

It is a cyclic number.

It is not a de Polignac number, because 3913913 - 2¹² = 3909817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3913963) 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, 845 + ... + 2922.

It is an arithmetic number, because the mean of its divisors is an integer number (979680).

Almost surely, 2^3913913 is an apocalyptic number.

It is an amenable number.

3913913 is a deficient number, since it is larger than the sum of its proper divisors (4807).

3913913 is a wasteful number, since it uses less digits than its factorization.

3913913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806.

The product of its digits is 2187, while the sum is 29.

The square root of 3913913 is about 1978.3611904806. The cubic root of 3913913 is about 157.5930482345.

The spelling of 3913913 in words is "three million, nine hundred thirteen thousand, nine hundred thirteen".