3965390 has 64 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1280640.

The previous prime is 3965383. The next prime is 3965393. The reversal of 3965390 is 935693.

3965390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3965390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67181 + ... + 67239.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

Almost surely, 2^3965390 is an apocalyptic number.

3965390 is an abundant number, since it is smaller than the sum of its proper divisors (4743730).

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

3965390 is a wasteful number, since it uses less digits than its factorization.

3965390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 3965390 is about 1991.3287021484. The cubic root of 3965390 is about 158.2809454260.

The spelling of 3965390 in words is "three million, nine hundred sixty-five thousand, three hundred ninety".