3951313 has 6 divisors (see below), whose sum is σ = 4047234. Its totient is φ = 3857616.

The previous prime is 3951307. The next prime is 3951319. The reversal of 3951313 is 3131593.

3951313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3951307) and next prime (3951319).

It can be written as a sum of positive squares in only one way, i.e., 2396304 + 1555009 = 1548^2 + 1247^2 .

It is not a de Polignac number, because 3951313 - 2⁵ = 3951281 is a prime.

It is a super-2 number, since 2×3951313² = 31225748847938, which contains 22 as substring.

It is a Duffinian number.

3951313 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3951319) 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 5 ways as a sum of consecutive naturals, for example, 781 + ... + 2917.

It is an arithmetic number, because the mean of its divisors is an integer number (674539).

Almost surely, 2^3951313 is an apocalyptic number.

It is an amenable number.

3951313 is a deficient number, since it is larger than the sum of its proper divisors (95921).

3951313 is an equidigital number, since it uses as much as digits as its factorization.

3951313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223 (or 2180 counting only the distinct ones).

The product of its digits is 1215, while the sum is 25.

The square root of 3951313 is about 1987.7909849881. The cubic root of 3951313 is about 158.0934260256.

The spelling of 3951313 in words is "three million, nine hundred fifty-one thousand, three hundred thirteen".