3966423 has 8 divisors (see below), whose sum is σ = 5599728. Its totient is φ = 2488704.

The previous prime is 3966409. The next prime is 3966433. The reversal of 3966423 is 3246693.

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

It is not a de Polignac number, because 3966423 - 2⁴ = 3966407 is a prime.

It is a super-2 number, since 2×3966423² = 31465022829858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38836 + ... + 38937.

It is an arithmetic number, because the mean of its divisors is an integer number (699966).

Almost surely, 2^3966423 is an apocalyptic number.

3966423 is a deficient number, since it is larger than the sum of its proper divisors (1633305).

3966423 is a wasteful number, since it uses less digits than its factorization.

3966423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77793.

The product of its digits is 23328, while the sum is 33.

The square root of 3966423 is about 1991.5880598156. The cubic root of 3966423 is about 158.2946885065.

The spelling of 3966423 in words is "three million, nine hundred sixty-six thousand, four hundred twenty-three".