543640005 has 40 divisors (see below), whose sum is σ = 980100000. Its totient is φ = 288283104.

The previous prime is 543639973. The next prime is 543640037. The reversal of 543640005 is 500046345.

It is an interprime number because it is at equal distance from previous prime (543639973) and next prime (543640037).

It is not a de Polignac number, because 543640005 - 2⁵ = 543639973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 68746 + ... + 76244.

It is an arithmetic number, because the mean of its divisors is an integer number (24502500).

Almost surely, 2^543640005 is an apocalyptic number.

It is an amenable number.

543640005 is a deficient number, since it is larger than the sum of its proper divisors (436459995).

543640005 is a wasteful number, since it uses less digits than its factorization.

543640005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695 (or 7686 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 543640005 is about 23316.0889730675. The cubic root of 543640005 is about 816.1509101298.

The spelling of 543640005 in words is "five hundred forty-three million, six hundred forty thousand, five".