677280047 has 2 divisors, whose sum is σ = 677280048. Its totient is φ = 677280046.

The previous prime is 677280029. The next prime is 677280053. The reversal of 677280047 is 740082776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677280047 - 2¹⁰ = 677279023 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 677279986 and 677280013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677280347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338640023 + 338640024.

It is an arithmetic number, because the mean of its divisors is an integer number (338640024).

Almost surely, 2^677280047 is an apocalyptic number.

677280047 is a deficient number, since it is larger than the sum of its proper divisors (1).

677280047 is an equidigital number, since it uses as much as digits as its factorization.

677280047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 677280047 is about 26024.6046463726. The cubic root of 677280047 is about 878.1919000326.

The spelling of 677280047 in words is "six hundred seventy-seven million, two hundred eighty thousand, forty-seven".