672997243 has 2 divisors, whose sum is σ = 672997244. Its totient is φ = 672997242.

The previous prime is 672997223. The next prime is 672997249. The reversal of 672997243 is 342799276.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672997243 - 2⁵ = 672997211 is a prime.

It is not a weakly prime, because it can be changed into another prime (672997249) 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, 336498621 + 336498622.

It is an arithmetic number, because the mean of its divisors is an integer number (336498622).

Almost surely, 2^672997243 is an apocalyptic number.

672997243 is a deficient number, since it is larger than the sum of its proper divisors (1).

672997243 is an equidigital number, since it uses as much as digits as its factorization.

672997243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 672997243 is about 25942.1904048213. The cubic root of 672997243 is about 876.3368920814.

The spelling of 672997243 in words is "six hundred seventy-two million, nine hundred ninety-seven thousand, two hundred forty-three".