243796983 has 16 divisors (see below), whose sum is σ = 347533056. Its totient is φ = 151482240.

The previous prime is 243796957. The next prime is 243796991. The reversal of 243796983 is 389697342.

It is not a de Polignac number, because 243796983 - 2⁵ = 243796951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243796933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17953 + ... + 28458.

It is an arithmetic number, because the mean of its divisors is an integer number (21720816).

Almost surely, 2^243796983 is an apocalyptic number.

243796983 is a deficient number, since it is larger than the sum of its proper divisors (103736073).

243796983 is a wasteful number, since it uses less digits than its factorization.

243796983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46534.

The product of its digits is 1959552, while the sum is 51.

The square root of 243796983 is about 15613.9995837069. Note that the first 3 decimals coincide. The cubic root of 243796983 is about 624.7066211344.

The spelling of 243796983 in words is "two hundred forty-three million, seven hundred ninety-six thousand, nine hundred eighty-three".