5645431 has 8 divisors (see below), whose sum is σ = 6192000. Its totient is φ = 5104440.

The previous prime is 5645407. The next prime is 5645447. The reversal of 5645431 is 1345465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5645431 - 2¹¹ = 5643383 is a prime.

It is a super-2 number, since 2×5645431² = 63741782351522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5645431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645491) 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, 900 + ... + 3478.

It is an arithmetic number, because the mean of its divisors is an integer number (774000).

Almost surely, 2^5645431 is an apocalyptic number.

5645431 is a deficient number, since it is larger than the sum of its proper divisors (546569).

5645431 is a wasteful number, since it uses less digits than its factorization.

5645431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789.

The product of its digits is 7200, while the sum is 28.

The square root of 5645431 is about 2376.0115740459. The cubic root of 5645431 is about 178.0597262014.

It can be divided in two parts, 564 and 5431, that added together give a palindrome (5995).

The spelling of 5645431 in words is "five million, six hundred forty-five thousand, four hundred thirty-one".