673340869 has 2 divisors, whose sum is σ = 673340870. Its totient is φ = 673340868.

The previous prime is 673340849. The next prime is 673340891. The reversal of 673340869 is 968043376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670136769 + 3204100 = 25887^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 673340869 - 2²³ = 664952261 is a prime.

It is a super-2 number, since 2×673340869² = 906775851731350322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673340809) 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, 336670434 + 336670435.

It is an arithmetic number, because the mean of its divisors is an integer number (336670435).

Almost surely, 2^673340869 is an apocalyptic number.

It is an amenable number.

673340869 is a deficient number, since it is larger than the sum of its proper divisors (1).

673340869 is an equidigital number, since it uses as much as digits as its factorization.

673340869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 673340869 is about 25948.8124776453. The cubic root of 673340869 is about 876.4860164683.

The spelling of 673340869 in words is "six hundred seventy-three million, three hundred forty thousand, eight hundred sixty-nine".