3958161 has 8 divisors (see below), whose sum is σ = 5588064. Its totient is φ = 2483520.

The previous prime is 3958153. The next prime is 3958169. The reversal of 3958161 is 1618593.

3958161 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 (3958153) and next prime (3958169).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3958161 - 2³ = 3958153 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3958169) 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 7 ways as a sum of consecutive naturals, for example, 38755 + ... + 38856.

It is an arithmetic number, because the mean of its divisors is an integer number (698508).

Almost surely, 2^3958161 is an apocalyptic number.

It is an amenable number.

3958161 is a deficient number, since it is larger than the sum of its proper divisors (1629903).

3958161 is a wasteful number, since it uses less digits than its factorization.

3958161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77631.

The product of its digits is 6480, while the sum is 33.

The square root of 3958161 is about 1989.5127544200. The cubic root of 3958161 is about 158.1847036130.

The spelling of 3958161 in words is "three million, nine hundred fifty-eight thousand, one hundred sixty-one".