3993194 has 8 divisors (see below), whose sum is σ = 6043140. Its totient is φ = 1978816.

The previous prime is 3993193. The next prime is 3993217. The reversal of 3993194 is 4913993.

It can be written as a sum of positive squares in 2 ways, for example, as 3115225 + 877969 = 1765^2 + 937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3993193) 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, 8609 + ... + 9060.

Almost surely, 2^3993194 is an apocalyptic number.

3993194 is a deficient number, since it is larger than the sum of its proper divisors (2049946).

3993194 is a wasteful number, since it uses less digits than its factorization.

3993194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784.

The product of its digits is 26244, while the sum is 38.

The square root of 3993194 is about 1998.2977756080. The cubic root of 3993194 is about 158.6500219890.

It can be divided in two parts, 399 and 3194, that multiplied together give a triangular number (1274406 = T₁₅₉₆).

The spelling of 3993194 in words is "three million, nine hundred ninety-three thousand, one hundred ninety-four".