20232347 has 2 divisors, whose sum is σ = 20232348. Its totient is φ = 20232346.

The previous prime is 20232319. The next prime is 20232349. The reversal of 20232347 is 74323202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20232347 is a prime.

Together with 20232349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20232349) 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 as a sum of consecutive naturals, namely, 10116173 + 10116174.

It is an arithmetic number, because the mean of its divisors is an integer number (10116174).

Almost surely, 2^20232347 is an apocalyptic number.

20232347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232347 is an equidigital number, since it uses as much as digits as its factorization.

20232347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20232347 is about 4498.0381278953. The cubic root of 20232347 is about 272.4888618740.

Adding to 20232347 its reverse (74323202), we get a palindrome (94555549).

The spelling of 20232347 in words is "twenty million, two hundred thirty-two thousand, three hundred forty-seven".