677707841 has 2 divisors, whose sum is σ = 677707842. Its totient is φ = 677707840.

The previous prime is 677707801. The next prime is 677707853. The reversal of 677707841 is 148707776.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495997441 + 181710400 = 22271^2 + 13480^2 .

It is a cyclic number.

It is not a de Polignac number, because 677707841 - 2²² = 673513537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (677707801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338853920 + 338853921.

It is an arithmetic number, because the mean of its divisors is an integer number (338853921).

Almost surely, 2^677707841 is an apocalyptic number.

It is an amenable number.

677707841 is a deficient number, since it is larger than the sum of its proper divisors (1).

677707841 is an equidigital number, since it uses as much as digits as its factorization.

677707841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460992, while the sum is 47.

The square root of 677707841 is about 26032.8223786819. The cubic root of 677707841 is about 878.3767601243.

The spelling of 677707841 in words is "six hundred seventy-seven million, seven hundred seven thousand, eight hundred forty-one".