230917983 has 4 divisors (see below), whose sum is σ = 307890648. Its totient is φ = 153945320.

The previous prime is 230917969. The next prime is 230917991. The reversal of 230917983 is 389719032.

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

It is a cyclic number.

It is not a de Polignac number, because 230917983 - 2¹⁷ = 230786911 is a prime.

It is a super-2 number, since 2×230917983² = 106646229745576578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230917903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38486328 + ... + 38486333.

It is an arithmetic number, because the mean of its divisors is an integer number (76972662).

Almost surely, 2^230917983 is an apocalyptic number.

230917983 is a deficient number, since it is larger than the sum of its proper divisors (76972665).

230917983 is an equidigital number, since it uses as much as digits as its factorization.

230917983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76972664.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 230917983 is about 15195.9857528230. The cubic root of 230917983 is about 613.5066178682.

The spelling of 230917983 in words is "two hundred thirty million, nine hundred seventeen thousand, nine hundred eighty-three".