5645471 has 4 divisors (see below), whose sum is σ = 6079752. Its totient is φ = 5211192.

The previous prime is 5645447. The next prime is 5645473. The reversal of 5645471 is 1745465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1745465 = 5 ⋅349093.

It is a cyclic number.

It is not a de Polignac number, because 5645471 - 2⁶ = 5645407 is a prime.

It is a super-3 number, since 3×5645471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217121 + ... + 217146.

It is an arithmetic number, because the mean of its divisors is an integer number (1519938).

Almost surely, 2^5645471 is an apocalyptic number.

5645471 is a deficient number, since it is larger than the sum of its proper divisors (434281).

5645471 is a wasteful number, since it uses less digits than its factorization.

5645471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434280.

The product of its digits is 16800, while the sum is 32.

The square root of 5645471 is about 2376.0199914984. The cubic root of 5645471 is about 178.0601467404.

It can be divided in two parts, 5645 and 471, that added together give a palindrome (6116).

The spelling of 5645471 in words is "five million, six hundred forty-five thousand, four hundred seventy-one".