1223877671 has 2 divisors, whose sum is σ = 1223877672. Its totient is φ = 1223877670.

The previous prime is 1223877637. The next prime is 1223877673. The reversal of 1223877671 is 1767783221.

It is a strong prime.

It is an emirp because it is prime and its reverse (1767783221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223877671 - 2⁶ = 1223877607 is a prime.

Together with 1223877673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223877673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611938835 + 611938836.

It is an arithmetic number, because the mean of its divisors is an integer number (611938836).

Almost surely, 2^1223877671 is an apocalyptic number.

1223877671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223877671 is an equidigital number, since it uses as much as digits as its factorization.

1223877671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 44.

The square root of 1223877671 is about 34983.9630545197. The cubic root of 1223877671 is about 1069.6606112022.

The spelling of 1223877671 in words is "one billion, two hundred twenty-three million, eight hundred seventy-seven thousand, six hundred seventy-one".