672823247 has 2 divisors, whose sum is σ = 672823248. Its totient is φ = 672823246.

The previous prime is 672823241. The next prime is 672823259. The reversal of 672823247 is 742328276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672823247 - 2⁶ = 672823183 is a prime.

It is a super-3 number, since 3×672823247³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672823241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336411623 + 336411624.

It is an arithmetic number, because the mean of its divisors is an integer number (336411624).

Almost surely, 2^672823247 is an apocalyptic number.

672823247 is a deficient number, since it is larger than the sum of its proper divisors (1).

672823247 is an equidigital number, since it uses as much as digits as its factorization.

672823247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 41.

The square root of 672823247 is about 25938.8366547153. The cubic root of 672823247 is about 876.2613631656.

The spelling of 672823247 in words is "six hundred seventy-two million, eight hundred twenty-three thousand, two hundred forty-seven".