3959650 has 12 divisors (see below), whose sum is σ = 7365042. Its totient is φ = 1583840.

The previous prime is 3959591. The next prime is 3959651. The reversal of 3959650 is 569593.

It can be written as a sum of positive squares in 3 ways, for example, as 2569609 + 1390041 = 1603^2 + 1179^2 .

It is not an unprimeable number, because it can be changed into a prime (3959651) 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, 39547 + ... + 39646.

Almost surely, 2^3959650 is an apocalyptic number.

3959650 is a deficient number, since it is larger than the sum of its proper divisors (3405392).

3959650 is a wasteful number, since it uses less digits than its factorization.

3959650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79205 (or 79200 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 3959650 is about 1989.8869314612. The cubic root of 3959650 is about 158.2045366866.

The spelling of 3959650 in words is "three million, nine hundred fifty-nine thousand, six hundred fifty".