3958559 has 4 divisors (see below), whose sum is σ = 4318440. Its totient is φ = 3598680.

The previous prime is 3958543. The next prime is 3958583. The reversal of 3958559 is 9558593.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3958559 - 2⁴ = 3958543 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958589) 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, 179924 + ... + 179945.

It is an arithmetic number, because the mean of its divisors is an integer number (1079610).

Almost surely, 2^3958559 is an apocalyptic number.

3958559 is a deficient number, since it is larger than the sum of its proper divisors (359881).

3958559 is a wasteful number, since it uses less digits than its factorization.

3958559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359880.

The product of its digits is 243000, while the sum is 44.

The square root of 3958559 is about 1989.6127763965. The cubic root of 3958559 is about 158.1900053514.

The spelling of 3958559 in words is "three million, nine hundred fifty-eight thousand, five hundred fifty-nine".