11958223 has 2 divisors, whose sum is σ = 11958224. Its totient is φ = 11958222.

The previous prime is 11958211. The next prime is 11958241. The reversal of 11958223 is 32285911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11958223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11958263) 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 as a sum of consecutive naturals, namely, 5979111 + 5979112.

It is an arithmetic number, because the mean of its divisors is an integer number (5979112).

Almost surely, 2^11958223 is an apocalyptic number.

11958223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11958223 is an equidigital number, since it uses as much as digits as its factorization.

11958223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 11958223 is about 3458.0663672058. The cubic root of 11958223 is about 228.6768577804.

The spelling of 11958223 in words is "eleven million, nine hundred fifty-eight thousand, two hundred twenty-three".