3956738 has 8 divisors (see below), whose sum is σ = 5960460. Its totient is φ = 1969920.

The previous prime is 3956737. The next prime is 3956741. The reversal of 3956738 is 8376593.

It can be written as a sum of positive squares in 2 ways, for example, as 3892729 + 64009 = 1973^2 + 253^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3956695 and 3956704.

It is not an unprimeable number, because it can be changed into a prime (3956737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623 + ... + 4586.

Almost surely, 2^3956738 is an apocalyptic number.

3956738 is a deficient number, since it is larger than the sum of its proper divisors (2003722).

3956738 is a wasteful number, since it uses less digits than its factorization.

3956738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452.

The product of its digits is 136080, while the sum is 41.

The square root of 3956738 is about 1989.1550970198. The cubic root of 3956738 is about 158.1657449928.

The spelling of 3956738 in words is "three million, nine hundred fifty-six thousand, seven hundred thirty-eight".