4471618 has 4 divisors (see below), whose sum is σ = 6707430. Its totient is φ = 2235808.

The previous prime is 4471609. The next prime is 4471619. The reversal of 4471618 is 8161744.

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

It can be written as a sum of positive squares in only one way, i.e., 2319529 + 2152089 = 1523^2 + 1467^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4471618.

It is not an unprimeable number, because it can be changed into a prime (4471619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117903 + ... + 1117906.

Almost surely, 2^4471618 is an apocalyptic number.

4471618 is a deficient number, since it is larger than the sum of its proper divisors (2235812).

4471618 is a wasteful number, since it uses less digits than its factorization.

4471618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235811.

The product of its digits is 5376, while the sum is 31.

The square root of 4471618 is about 2114.6200604364. The cubic root of 4471618 is about 164.7485364569.

The spelling of 4471618 in words is "four million, four hundred seventy-one thousand, six hundred eighteen".