243969077 has 8 divisors (see below), whose sum is σ = 266414400. Its totient is φ = 221568160.

The previous prime is 243969067. The next prime is 243969097. The reversal of 243969077 is 770969342.

243969077 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 not a de Polignac number, because 243969077 - 2⁶ = 243969013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243969007) 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, 968 + ... + 22110.

It is an arithmetic number, because the mean of its divisors is an integer number (33301800).

Almost surely, 2^243969077 is an apocalyptic number.

It is an amenable number.

243969077 is a deficient number, since it is larger than the sum of its proper divisors (22445323).

243969077 is a wasteful number, since it uses less digits than its factorization.

243969077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22203.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 243969077 is about 15619.5094993409. The cubic root of 243969077 is about 624.8535780730.

The spelling of 243969077 in words is "two hundred forty-three million, nine hundred sixty-nine thousand, seventy-seven".