3897618 has 16 divisors (see below), whose sum is σ = 7818816. Its totient is φ = 1295280.

The previous prime is 3897611. The next prime is 3897631. The reversal of 3897618 is 8167983.

It is a Curzon number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 3897618.

It is not an unprimeable number, because it can be changed into a prime (3897611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1755 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (488676).

Almost surely, 2^3897618 is an apocalyptic number.

3897618 is an abundant number, since it is smaller than the sum of its proper divisors (3921198).

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

3897618 is a wasteful number, since it uses less digits than its factorization.

3897618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969.

The product of its digits is 72576, while the sum is 42.

The square root of 3897618 is about 1974.2385874053. The cubic root of 3897618 is about 157.3740388708.

The spelling of 3897618 in words is "three million, eight hundred ninety-seven thousand, six hundred eighteen".