672910417 has 2 divisors, whose sum is σ = 672910418. Its totient is φ = 672910416.

The previous prime is 672910393. The next prime is 672910429. The reversal of 672910417 is 714019276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 615089601 + 57820816 = 24801^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 672910417 - 2¹⁹ = 672386129 is a prime.

It is a super-2 number, since 2×672910417² = 905616858614227778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672910477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336455208 + 336455209.

It is an arithmetic number, because the mean of its divisors is an integer number (336455209).

Almost surely, 2^672910417 is an apocalyptic number.

It is an amenable number.

672910417 is a deficient number, since it is larger than the sum of its proper divisors (1).

672910417 is an equidigital number, since it uses as much as digits as its factorization.

672910417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 672910417 is about 25940.5168992447. The cubic root of 672910417 is about 876.2992039134.

The spelling of 672910417 in words is "six hundred seventy-two million, nine hundred ten thousand, four hundred seventeen".