406828543 has 4 divisors (see below), whose sum is σ = 443812968. Its totient is φ = 369844120.

The previous prime is 406828537. The next prime is 406828549. The reversal of 406828543 is 345828604.

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

It is an interprime number because it is at equal distance from previous prime (406828537) and next prime (406828549).

It is a cyclic number.

It is not a de Polignac number, because 406828543 - 2⁵ = 406828511 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406828496 and 406828505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406828549) 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, 18492196 + ... + 18492217.

It is an arithmetic number, because the mean of its divisors is an integer number (110953242).

Almost surely, 2^406828543 is an apocalyptic number.

406828543 is a deficient number, since it is larger than the sum of its proper divisors (36984425).

406828543 is a wasteful number, since it uses less digits than its factorization.

406828543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36984424.

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 406828543 is about 20169.9911502212. The cubic root of 406828543 is about 740.9754260043.

The spelling of 406828543 in words is "four hundred six million, eight hundred twenty-eight thousand, five hundred forty-three".