672343069 has 2 divisors, whose sum is σ = 672343070. Its totient is φ = 672343068.

The previous prime is 672343039. The next prime is 672343117. The reversal of 672343069 is 960343276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645820569 + 26522500 = 25413^2 + 5150^2 .

It is a cyclic number.

It is not a de Polignac number, because 672343069 - 2⁷ = 672342941 is a prime.

It is a super-2 number, since 2×672343069² = 904090404864677522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672343039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336171534 + 336171535.

It is an arithmetic number, because the mean of its divisors is an integer number (336171535).

Almost surely, 2^672343069 is an apocalyptic number.

It is an amenable number.

672343069 is a deficient number, since it is larger than the sum of its proper divisors (1).

672343069 is an equidigital number, since it uses as much as digits as its factorization.

672343069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 672343069 is about 25929.5790363052. The cubic root of 672343069 is about 876.0528579025.

The spelling of 672343069 in words is "six hundred seventy-two million, three hundred forty-three thousand, sixty-nine".