672707297 has 2 divisors, whose sum is σ = 672707298. Its totient is φ = 672707296.

The previous prime is 672707279. The next prime is 672707309. The reversal of 672707297 is 792707276.

Together with previous prime (672707279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430313536 + 242393761 = 20744^2 + 15569^2 .

It is a cyclic number.

It is not a de Polignac number, because 672707297 - 2¹⁰ = 672706273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (672707237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336353648 + 336353649.

It is an arithmetic number, because the mean of its divisors is an integer number (336353649).

Almost surely, 2^672707297 is an apocalyptic number.

It is an amenable number.

672707297 is a deficient number, since it is larger than the sum of its proper divisors (1).

672707297 is an equidigital number, since it uses as much as digits as its factorization.

672707297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518616, while the sum is 47.

The square root of 672707297 is about 25936.6014928710. The cubic root of 672707297 is about 876.2110238714.

The spelling of 672707297 in words is "six hundred seventy-two million, seven hundred seven thousand, two hundred ninety-seven".