243348747 has 4 divisors (see below), whose sum is σ = 324465000. Its totient is φ = 162232496.

The previous prime is 243348733. The next prime is 243348793. The reversal of 243348747 is 747843342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243348747 - 2⁶ = 243348683 is a prime.

It is a super-2 number, since 2×243348747² = 118437225332940018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243348699 and 243348708.

It is not an unprimeable number, because it can be changed into a prime (243348797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40558122 + ... + 40558127.

It is an arithmetic number, because the mean of its divisors is an integer number (81116250).

Almost surely, 2^243348747 is an apocalyptic number.

243348747 is a deficient number, since it is larger than the sum of its proper divisors (81116253).

243348747 is an equidigital number, since it uses as much as digits as its factorization.

243348747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81116252.

The product of its digits is 451584, while the sum is 42.

The square root of 243348747 is about 15599.6393227536. The cubic root of 243348747 is about 624.3235321969.

The spelling of 243348747 in words is "two hundred forty-three million, three hundred forty-eight thousand, seven hundred forty-seven".