672277841 has 2 divisors, whose sum is σ = 672277842. Its totient is φ = 672277840.

The previous prime is 672277831. The next prime is 672277843. The reversal of 672277841 is 148772276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471063616 + 201214225 = 21704^2 + 14185^2 .

It is a cyclic number.

It is not a de Polignac number, because 672277841 - 2⁶ = 672277777 is a prime.

It is a super-3 number, since 3×672277841³ (a number of 27 digits) contains 333 as substring.

Together with 672277843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 672277792 and 672277801.

It is not a weakly prime, because it can be changed into another prime (672277843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336138920 + 336138921.

It is an arithmetic number, because the mean of its divisors is an integer number (336138921).

Almost surely, 2^672277841 is an apocalyptic number.

It is an amenable number.

672277841 is a deficient number, since it is larger than the sum of its proper divisors (1).

672277841 is an equidigital number, since it uses as much as digits as its factorization.

672277841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 44.

The square root of 672277841 is about 25928.3212144558. The cubic root of 672277841 is about 876.0245266202.

The spelling of 672277841 in words is "six hundred seventy-two million, two hundred seventy-seven thousand, eight hundred forty-one".