543638474 has 4 divisors (see below), whose sum is σ = 815457714. Its totient is φ = 271819236.

The previous prime is 543638471. The next prime is 543638477. The reversal of 543638474 is 474836345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474836345 = 5 ⋅94967269.

It is an interprime number because it is at equal distance from previous prime (543638471) and next prime (543638477).

It can be written as a sum of positive squares in only one way, i.e., 497602249 + 46036225 = 22307^2 + 6785^2 .

It is not an unprimeable number, because it can be changed into a prime (543638471) by changing a digit.

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 as a sum of consecutive naturals, namely, 135909617 + ... + 135909620.

Almost surely, 2^543638474 is an apocalyptic number.

543638474 is a deficient number, since it is larger than the sum of its proper divisors (271819240).

543638474 is a wasteful number, since it uses less digits than its factorization.

543638474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271819239.

The product of its digits is 967680, while the sum is 44.

The square root of 543638474 is about 23316.0561416377. The cubic root of 543638474 is about 816.1501439805.

The spelling of 543638474 in words is "five hundred forty-three million, six hundred thirty-eight thousand, four hundred seventy-four".