3956399 has 8 divisors (see below), whose sum is σ = 4077120. Its totient is φ = 3837600.

The previous prime is 3956353. The next prime is 3956401. The reversal of 3956399 is 9936593.

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

It is a cyclic number.

It is not a de Polignac number, because 3956399 - 2⁸ = 3956143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3956999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4409 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (509640).

Almost surely, 2^3956399 is an apocalyptic number.

3956399 is a deficient number, since it is larger than the sum of its proper divisors (120721).

3956399 is an equidigital number, since it uses as much as digits as its factorization.

3956399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its digits is 196830, while the sum is 44.

The square root of 3956399 is about 1989.0698831363. The cubic root of 3956399 is about 158.1612278275.

The spelling of 3956399 in words is "three million, nine hundred fifty-six thousand, three hundred ninety-nine".