3957558 has 32 divisors (see below), whose sum is σ = 8785152. Its totient is φ = 1178400.

The previous prime is 3957521. The next prime is 3957571. The reversal of 3957558 is 8557593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3535 + ... + 4517.

It is an arithmetic number, because the mean of its divisors is an integer number (274536).

Almost surely, 2^3957558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3957558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4392576).

3957558 is an abundant number, since it is smaller than the sum of its proper divisors (4827594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3957558 is a wasteful number, since it uses less digits than its factorization.

3957558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its digits is 189000, while the sum is 42.

The square root of 3957558 is about 1989.3612040049. The cubic root of 3957558 is about 158.1766704026.

The spelling of 3957558 in words is "three million, nine hundred fifty-seven thousand, five hundred fifty-eight".