3946723 has 4 divisors (see below), whose sum is σ = 4305528. Its totient is φ = 3587920.

The previous prime is 3946721. The next prime is 3946727. The reversal of 3946723 is 3276493.

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

It is a cyclic number.

It is not a de Polignac number, because 3946723 - 2¹ = 3946721 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3946721) 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, 179386 + ... + 179407.

It is an arithmetic number, because the mean of its divisors is an integer number (1076382).

Almost surely, 2^3946723 is an apocalyptic number.

3946723 is a deficient number, since it is larger than the sum of its proper divisors (358805).

3946723 is a wasteful number, since it uses less digits than its factorization.

3946723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358804.

The product of its digits is 27216, while the sum is 34.

The square root of 3946723 is about 1986.6361015546. The cubic root of 3946723 is about 158.0321864674.

It can be divided in two parts, 394 and 6723, that added together give a palindrome (7117).

The spelling of 3946723 in words is "three million, nine hundred forty-six thousand, seven hundred twenty-three".