3920894 has 4 divisors (see below), whose sum is σ = 5881344. Its totient is φ = 1960446.

The previous prime is 3920867. The next prime is 3920899. The reversal of 3920894 is 4980293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4980293 = 881 ⋅5653.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 980222 + ... + 980225.

It is an arithmetic number, because the mean of its divisors is an integer number (1470336).

Almost surely, 2^3920894 is an apocalyptic number.

3920894 is a deficient number, since it is larger than the sum of its proper divisors (1960450).

3920894 is a wasteful number, since it uses less digits than its factorization.

3920894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960449.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 3920894 is about 1980.1247435452. The cubic root of 3920894 is about 157.6866888463.

The spelling of 3920894 in words is "three million, nine hundred twenty thousand, eight hundred ninety-four".