5400643 has 8 divisors (see below), whose sum is σ = 5574240. Its totient is φ = 5229120.

The previous prime is 5400589. The next prime is 5400649. The reversal of 5400643 is 3460045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5400643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5400649) 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, 6018 + ... + 6856.

It is an arithmetic number, because the mean of its divisors is an integer number (696780).

Almost surely, 2^5400643 is an apocalyptic number.

5400643 is a deficient number, since it is larger than the sum of its proper divisors (173597).

5400643 is a wasteful number, since it uses less digits than its factorization.

5400643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 5400643 is about 2323.9283551779. The cubic root of 5400643 is about 175.4480275105.

Adding to 5400643 its reverse (3460045), we get a palindrome (8860688).

The spelling of 5400643 in words is "five million, four hundred thousand, six hundred forty-three".