243297087 has 8 divisors (see below), whose sum is σ = 353886720. Its totient is φ = 147452760.

The previous prime is 243297079. The next prime is 243297113. The reversal of 243297087 is 780792342.

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

It is not a de Polignac number, because 243297087 - 2³ = 243297079 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243297007) 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, 3686287 + ... + 3686352.

It is an arithmetic number, because the mean of its divisors is an integer number (44235840).

Almost surely, 2^243297087 is an apocalyptic number.

243297087 is a deficient number, since it is larger than the sum of its proper divisors (110589633).

243297087 is a wasteful number, since it uses less digits than its factorization.

243297087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7372653.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 243297087 is about 15597.9834273537. The cubic root of 243297087 is about 624.2793502884.

The spelling of 243297087 in words is "two hundred forty-three million, two hundred ninety-seven thousand, eighty-seven".