243474479 has 2 divisors, whose sum is σ = 243474480. Its totient is φ = 243474478.

The previous prime is 243474463. The next prime is 243474487. The reversal of 243474479 is 974474342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243474479 - 2⁴ = 243474463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243474419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121737239 + 121737240.

It is an arithmetic number, because the mean of its divisors is an integer number (121737240).

Almost surely, 2^243474479 is an apocalyptic number.

243474479 is a deficient number, since it is larger than the sum of its proper divisors (1).

243474479 is an equidigital number, since it uses as much as digits as its factorization.

243474479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 44.

The square root of 243474479 is about 15603.6687673124. The cubic root of 243474479 is about 624.4310376214.

The spelling of 243474479 in words is "two hundred forty-three million, four hundred seventy-four thousand, four hundred seventy-nine".