3955913 has 4 divisors (see below), whose sum is σ = 4260228. Its totient is φ = 3651600.

The previous prime is 3955909. The next prime is 3955927. The reversal of 3955913 is 3195593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 466489 + 3489424 = 683^2 + 1868^2 .

It is a cyclic number.

It is not a de Polignac number, because 3955913 - 2² = 3955909 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3955993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152138 + ... + 152163.

It is an arithmetic number, because the mean of its divisors is an integer number (1065057).

Almost surely, 2^3955913 is an apocalyptic number.

It is an amenable number.

3955913 is a deficient number, since it is larger than the sum of its proper divisors (304315).

3955913 is a wasteful number, since it uses less digits than its factorization.

3955913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304314.

The product of its digits is 18225, while the sum is 35.

The square root of 3955913 is about 1988.9477117310. The cubic root of 3955913 is about 158.1547514412.

The spelling of 3955913 in words is "three million, nine hundred fifty-five thousand, nine hundred thirteen".