677645341 has 2 divisors, whose sum is σ = 677645342. Its totient is φ = 677645340.

The previous prime is 677645327. The next prime is 677645363. The reversal of 677645341 is 143546776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432848025 + 244797316 = 20805^2 + 15646^2 .

It is a cyclic number.

It is not a de Polignac number, because 677645341 - 2⁹ = 677644829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677645741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338822670 + 338822671.

It is an arithmetic number, because the mean of its divisors is an integer number (338822671).

Almost surely, 2^677645341 is an apocalyptic number.

It is an amenable number.

677645341 is a deficient number, since it is larger than the sum of its proper divisors (1).

677645341 is an equidigital number, since it uses as much as digits as its factorization.

677645341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The square root of 677645341 is about 26031.6219433212. The cubic root of 677645341 is about 878.3497572223.

The spelling of 677645341 in words is "six hundred seventy-seven million, six hundred forty-five thousand, three hundred forty-one".