3897558 has 60 divisors (see below), whose sum is σ = 10179972. Its totient is φ = 1111320.

The previous prime is 3897521. The next prime is 3897559. The reversal of 3897558 is 8557983.

3897558 is a `hidden beast` number, since 3 + 8 + 97 + 558 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897559) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7693 + ... + 8183.

Almost surely, 2^3897558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3897558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5089986).

3897558 is an abundant number, since it is smaller than the sum of its proper divisors (6282414).

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

3897558 is a wasteful number, since it uses less digits than its factorization.

3897558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 503 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 3897558 is about 1974.2233916150. The cubic root of 3897558 is about 157.3732313271.

The spelling of 3897558 in words is "three million, eight hundred ninety-seven thousand, five hundred fifty-eight".