3940193 has 4 divisors (see below), whose sum is σ = 4067328. Its totient is φ = 3813060.

The previous prime is 3940177. The next prime is 3940207. The reversal of 3940193 is 3910493.

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.

It is a cyclic number.

It is not a de Polignac number, because 3940193 - 2⁴ = 3940177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3940693) 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, 63521 + ... + 63582.

It is an arithmetic number, because the mean of its divisors is an integer number (1016832).

Almost surely, 2^3940193 is an apocalyptic number.

It is an amenable number.

3940193 is a deficient number, since it is larger than the sum of its proper divisors (127135).

3940193 is a wasteful number, since it uses less digits than its factorization.

3940193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127134.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3940193 is about 1984.9919395302. The cubic root of 3940193 is about 157.9449816450.

The spelling of 3940193 in words is "three million, nine hundred forty thousand, one hundred ninety-three".