672804163 has 2 divisors, whose sum is σ = 672804164. Its totient is φ = 672804162.

The previous prime is 672804131. The next prime is 672804173. The reversal of 672804163 is 361408276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672804163 - 2⁵ = 672804131 is a prime.

It is not a weakly prime, because it can be changed into another prime (672804113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336402081 + 336402082.

It is an arithmetic number, because the mean of its divisors is an integer number (336402082).

Almost surely, 2^672804163 is an apocalyptic number.

672804163 is a deficient number, since it is larger than the sum of its proper divisors (1).

672804163 is an equidigital number, since it uses as much as digits as its factorization.

672804163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 672804163 is about 25938.4687867268. The cubic root of 672804163 is about 876.2530783101.

The spelling of 672804163 in words is "six hundred seventy-two million, eight hundred four thousand, one hundred sixty-three".