3960813 has 16 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 2416896.

The previous prime is 3960811. The next prime is 3960829. The reversal of 3960813 is 3180693.

It is not a de Polignac number, because 3960813 - 2¹ = 3960811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3960811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

Almost surely, 2^3960813 is an apocalyptic number.

It is an amenable number.

3960813 is a deficient number, since it is larger than the sum of its proper divisors (1784787).

3960813 is a wasteful number, since it uses less digits than its factorization.

3960813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3960813 is about 1990.1791376658. The cubic root of 3960813 is about 158.2200240710.

It can be divided in two parts, 39608 and 13, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 3960813 in words is "three million, nine hundred sixty thousand, eight hundred thirteen".