673224779 has 2 divisors, whose sum is σ = 673224780. Its totient is φ = 673224778.

The previous prime is 673224749. The next prime is 673224781. The reversal of 673224779 is 977422376.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673224779 is a prime.

Together with 673224781, 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 (673224749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336612389 + 336612390.

It is an arithmetic number, because the mean of its divisors is an integer number (336612390).

Almost surely, 2^673224779 is an apocalyptic number.

673224779 is a deficient number, since it is larger than the sum of its proper divisors (1).

673224779 is an equidigital number, since it uses as much as digits as its factorization.

673224779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 47.

The square root of 673224779 is about 25946.5754773149. The cubic root of 673224779 is about 876.4356422252.

The spelling of 673224779 in words is "six hundred seventy-three million, two hundred twenty-four thousand, seven hundred seventy-nine".