230636739 has 24 divisors (see below), whose sum is σ = 337970160. Its totient is φ = 139707904.

The previous prime is 230636719. The next prime is 230636743. The reversal of 230636739 is 937636032.

It is not a de Polignac number, because 230636739 - 2¹⁹ = 230112451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230636697 and 230636706.

It is not an unprimeable number, because it can be changed into a prime (230636719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20557 + ... + 29729.

It is an arithmetic number, because the mean of its divisors is an integer number (14082090).

Almost surely, 2^230636739 is an apocalyptic number.

230636739 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

230636739 is a deficient number, since it is larger than the sum of its proper divisors (107333421).

230636739 is a wasteful number, since it uses less digits than its factorization.

230636739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239 (or 9222 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 39.

The square root of 230636739 is about 15186.7290421605. The cubic root of 230636739 is about 613.2574454850.

The spelling of 230636739 in words is "two hundred thirty million, six hundred thirty-six thousand, seven hundred thirty-nine".