79143223 has 2 divisors, whose sum is σ = 79143224. Its totient is φ = 79143222.

The previous prime is 79143221. The next prime is 79143247. The reversal of 79143223 is 32234197.

It is a weak prime.

It is an emirp because it is prime and its reverse (32234197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79143223 - 2¹ = 79143221 is a prime.

Together with 79143221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79143221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39571611 + 39571612.

It is an arithmetic number, because the mean of its divisors is an integer number (39571612).

Almost surely, 2^79143223 is an apocalyptic number.

79143223 is a deficient number, since it is larger than the sum of its proper divisors (1).

79143223 is an equidigital number, since it uses as much as digits as its factorization.

79143223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 79143223 is about 8896.2476921453. The cubic root of 79143223 is about 429.3431887073.

The spelling of 79143223 in words is "seventy-nine million, one hundred forty-three thousand, two hundred twenty-three".