3961013 has 12 divisors (see below), whose sum is σ = 4640940. Its totient is φ = 3370752.

The previous prime is 3961007. The next prime is 3961021. The reversal of 3961013 is 3101693.

It can be written as a sum of positive squares in 2 ways, for example, as 2798929 + 1162084 = 1673^2 + 1078^2 .

It is not a de Polignac number, because 3961013 - 2⁴ = 3960997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3961013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11045 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (386745).

Almost surely, 2^3961013 is an apocalyptic number.

It is an amenable number.

3961013 is a deficient number, since it is larger than the sum of its proper divisors (679927).

3961013 is a wasteful number, since it uses less digits than its factorization.

3961013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 3961013 is about 1990.2293837646. The cubic root of 3961013 is about 158.2226871162. Note that the first 3 decimals are identical.

The spelling of 3961013 in words is "three million, nine hundred sixty-one thousand, thirteen".