3958005 has 8 divisors (see below), whose sum is σ = 6332832. Its totient is φ = 2110928.

The previous prime is 3957983. The next prime is 3958013. The reversal of 3958005 is 5008593.

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

It is a cyclic number.

It is not a de Polignac number, because 3958005 - 2⁵ = 3957973 is a prime.

It is a Curzon number.

3958005 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131919 + ... + 131948.

It is an arithmetic number, because the mean of its divisors is an integer number (791604).

Almost surely, 2^3958005 is an apocalyptic number.

It is an amenable number.

3958005 is a deficient number, since it is larger than the sum of its proper divisors (2374827).

3958005 is a wasteful number, since it uses less digits than its factorization.

3958005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263875.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 3958005 is about 1989.4735484545. The cubic root of 3958005 is about 158.1826254478.

The spelling of 3958005 in words is "three million, nine hundred fifty-eight thousand, five".