230724939 has 4 divisors (see below), whose sum is σ = 307633256. Its totient is φ = 153816624.

The previous prime is 230724883. The next prime is 230724941. The reversal of 230724939 is 939427032.

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

It is not a de Polignac number, because 230724939 - 2⁹ = 230724427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230724897 and 230724906.

It is not an unprimeable number, because it can be changed into a prime (230724959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38454154 + ... + 38454159.

It is an arithmetic number, because the mean of its divisors is an integer number (76908314).

Almost surely, 2^230724939 is an apocalyptic number.

230724939 is a deficient number, since it is larger than the sum of its proper divisors (76908317).

230724939 is an equidigital number, since it uses as much as digits as its factorization.

230724939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76908316.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 230724939 is about 15189.6326157021. The cubic root of 230724939 is about 613.3356094027.

The spelling of 230724939 in words is "two hundred thirty million, seven hundred twenty-four thousand, nine hundred thirty-nine".