672898643 has 2 divisors, whose sum is σ = 672898644. Its totient is φ = 672898642.

The previous prime is 672898637. The next prime is 672898729. The reversal of 672898643 is 346898276.

672898643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672898643 - 2⁴ = 672898627 is a prime.

It is not a weakly prime, because it can be changed into another prime (672898043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336449321 + 336449322.

It is an arithmetic number, because the mean of its divisors is an integer number (336449322).

Almost surely, 2^672898643 is an apocalyptic number.

672898643 is a deficient number, since it is larger than the sum of its proper divisors (1).

672898643 is an equidigital number, since it uses as much as digits as its factorization.

672898643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 53.

The square root of 672898643 is about 25940.2899559739. The cubic root of 672898643 is about 876.2940929770.

The spelling of 672898643 in words is "six hundred seventy-two million, eight hundred ninety-eight thousand, six hundred forty-three".