243806969 has 8 divisors (see below), whose sum is σ = 290751360. Its totient is φ = 199891296.

The previous prime is 243806929. The next prime is 243806977. The reversal of 243806969 is 969608342.

243806969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 243806969 - 2²⁰ = 242758393 is a prime.

It is a super-2 number, since 2×243806969² = 118883676265933922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243806929) 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, 757004 + ... + 757325.

It is an arithmetic number, because the mean of its divisors is an integer number (36343920).

Almost surely, 2^243806969 is an apocalyptic number.

It is an amenable number.

243806969 is a deficient number, since it is larger than the sum of its proper divisors (46944391).

243806969 is a wasteful number, since it uses less digits than its factorization.

243806969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514359.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 243806969 is about 15614.3193575641. The cubic root of 243806969 is about 624.7151504102.

The spelling of 243806969 in words is "two hundred forty-three million, eight hundred six thousand, nine hundred sixty-nine".