3946973 has 4 divisors (see below), whose sum is σ = 3961500. Its totient is φ = 3932448.

The previous prime is 3946939. The next prime is 3946981. The reversal of 3946973 is 3796493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1747684 + 2199289 = 1322^2 + 1483^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3946973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3946973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946913) 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, 6848 + ... + 7401.

It is an arithmetic number, because the mean of its divisors is an integer number (990375).

Almost surely, 2^3946973 is an apocalyptic number.

It is an amenable number.

3946973 is a deficient number, since it is larger than the sum of its proper divisors (14527).

3946973 is a wasteful number, since it uses less digits than its factorization.

3946973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14526.

The product of its digits is 122472, while the sum is 41.

The square root of 3946973 is about 1986.6990209893. The cubic root of 3946973 is about 158.0355231776.

The spelling of 3946973 in words is "three million, nine hundred forty-six thousand, nine hundred seventy-three".