3940163 has 4 divisors (see below), whose sum is σ = 4147560. Its totient is φ = 3732768.

The previous prime is 3940159. The next prime is 3940171. The reversal of 3940163 is 3610493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3610493 = 47 ⋅76819.

It is a cyclic number.

It is not a de Polignac number, because 3940163 - 2² = 3940159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3940063) 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, 103670 + ... + 103707.

It is an arithmetic number, because the mean of its divisors is an integer number (1036890).

Almost surely, 2^3940163 is an apocalyptic number.

3940163 is a deficient number, since it is larger than the sum of its proper divisors (207397).

3940163 is a wasteful number, since it uses less digits than its factorization.

3940163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207396.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 3940163 is about 1984.9843828101. The cubic root of 3940163 is about 157.9445807881.

The spelling of 3940163 in words is "three million, nine hundred forty thousand, one hundred sixty-three".