3940493 has 4 divisors (see below), whose sum is σ = 3958080. Its totient is φ = 3922908.

The previous prime is 3940487. The next prime is 3940499.

3940493 is nontrivially palindromic in base 10.

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 an interprime number because it is at equal distance from previous prime (3940487) and next prime (3940499).

It is a cyclic number.

It is not a de Polignac number, because 3940493 - 2¹⁰ = 3939469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940499) 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, 8453 + ... + 8906.

It is an arithmetic number, because the mean of its divisors is an integer number (989520).

Almost surely, 2^3940493 is an apocalyptic number.

It is an amenable number.

3940493 is a deficient number, since it is larger than the sum of its proper divisors (17587).

3940493 is a wasteful number, since it uses less digits than its factorization.

3940493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3940493 is about 1985.0675051494. The cubic root of 3940493 is about 157.9489901028.

The spelling of 3940493 in words is "three million, nine hundred forty thousand, four hundred ninety-three".