243084473 has 8 divisors (see below), whose sum is σ = 244869768. Its totient is φ = 241305984.

The previous prime is 243084469. The next prime is 243084511. The reversal of 243084473 is 374480342.

It can be written as a sum of positive squares in 4 ways, for example, as 33500944 + 209583529 = 5788^2 + 14477^2 .

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

It is not a de Polignac number, because 243084473 - 2² = 243084469 is a prime.

It is a super-2 number, since 2×243084473² = 118180122027375458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243084403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85511 + ... + 88307.

It is an arithmetic number, because the mean of its divisors is an integer number (30608721).

Almost surely, 2^243084473 is an apocalyptic number.

It is an amenable number.

243084473 is a deficient number, since it is larger than the sum of its proper divisors (1785295).

243084473 is a wasteful number, since it uses less digits than its factorization.

243084473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 243084473 is about 15591.1665054286. The cubic root of 243084473 is about 624.0974475593.

The spelling of 243084473 in words is "two hundred forty-three million, eighty-four thousand, four hundred seventy-three".