3969850 has 12 divisors (see below), whose sum is σ = 7384014. Its totient is φ = 1587920.

The previous prime is 3969827. The next prime is 3969853. The reversal of 3969850 is 589693.

It can be written as a sum of positive squares in 3 ways, for example, as 2374681 + 1595169 = 1541^2 + 1263^2 .

It is not an unprimeable number, because it can be changed into a prime (3969853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39649 + ... + 39748.

Almost surely, 2^3969850 is an apocalyptic number.

3969850 is a deficient number, since it is larger than the sum of its proper divisors (3414164).

3969850 is a wasteful number, since it uses less digits than its factorization.

3969850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79409 (or 79404 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3969850 is about 1992.4482427406. The cubic root of 3969850 is about 158.3402643934.

The spelling of 3969850 in words is "three million, nine hundred sixty-nine thousand, eight hundred fifty".