3959690 has 24 divisors (see below), whose sum is σ = 8292132. Its totient is φ = 1357440.

The previous prime is 3959687. The next prime is 3959701. The reversal of 3959690 is 969593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3869089 + 90601 = 1967^2 + 301^2 .

It is a super-2 number, since 2×3959690² = 31358289792200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3551 + ... + 4530.

Almost surely, 2^3959690 is an apocalyptic number.

3959690 is an abundant number, since it is smaller than the sum of its proper divisors (4332442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3959690 is a wasteful number, since it uses less digits than its factorization.

3959690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102 (or 8095 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 3959690 is about 1989.8969822581. The cubic root of 3959690 is about 158.2050694071.

The spelling of 3959690 in words is "three million, nine hundred fifty-nine thousand, six hundred ninety".