543409923 has 8 divisors (see below), whose sum is σ = 828053248. Its totient is φ = 310519944.

The previous prime is 543409907. The next prime is 543409939. The reversal of 543409923 is 329904345.

It is an interprime number because it is at equal distance from previous prime (543409907) and next prime (543409939).

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

It is not a de Polignac number, because 543409923 - 2⁴ = 543409907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (543409903) 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, 12938311 + ... + 12938352.

It is an arithmetic number, because the mean of its divisors is an integer number (103506656).

Almost surely, 2^543409923 is an apocalyptic number.

543409923 is a deficient number, since it is larger than the sum of its proper divisors (284643325).

543409923 is a wasteful number, since it uses less digits than its factorization.

543409923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25876673.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 543409923 is about 23311.1544759156. The cubic root of 543409923 is about 816.0357554137.

The spelling of 543409923 in words is "five hundred forty-three million, four hundred nine thousand, nine hundred twenty-three".