677404361 has 2 divisors, whose sum is σ = 677404362. Its totient is φ = 677404360.

The previous prime is 677404333. The next prime is 677404363. The reversal of 677404361 is 163404776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645414025 + 31990336 = 25405^2 + 5656^2 .

It is a cyclic number.

It is not a de Polignac number, because 677404361 - 2⁶ = 677404297 is a prime.

Together with 677404363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677404363) 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, 338702180 + 338702181.

It is an arithmetic number, because the mean of its divisors is an integer number (338702181).

Almost surely, 2^677404361 is an apocalyptic number.

It is an amenable number.

677404361 is a deficient number, since it is larger than the sum of its proper divisors (1).

677404361 is an equidigital number, since it uses as much as digits as its factorization.

677404361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 677404361 is about 26026.9929304175. The cubic root of 677404361 is about 878.2456271280.

The spelling of 677404361 in words is "six hundred seventy-seven million, four hundred four thousand, three hundred sixty-one".