5731618 has 16 divisors (see below), whose sum is σ = 9418680. Its totient is φ = 2603776.

The previous prime is 5731591. The next prime is 5731619. The reversal of 5731618 is 8161375.

It can be written as a sum of positive squares in 4 ways, for example, as 5631129 + 100489 = 2373^2 + 317^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5731618.

It is not an unprimeable number, because it can be changed into a prime (5731619) 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, 1921 + ... + 3892.

Almost surely, 2^5731618 is an apocalyptic number.

5731618 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5731618 is a deficient number, since it is larger than the sum of its proper divisors (3687062).

5731618 is a wasteful number, since it uses less digits than its factorization.

5731618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861.

The product of its digits is 5040, while the sum is 31.

The square root of 5731618 is about 2394.0797814609. The cubic root of 5731618 is about 178.9612808069.

The spelling of 5731618 in words is "five million, seven hundred thirty-one thousand, six hundred eighteen".