677471 has 2 divisors, whose sum is σ = 677472. Its totient is φ = 677470.

The previous prime is 677461. The next prime is 677473. The reversal of 677471 is 174776.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677471 is a prime.

It is a super-3 number, since 3×677471³ = 932810407621674333, which contains 333 as substring.

It is a Sophie Germain prime.

Together with 677473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 677471.

It is not a weakly prime, because it can be changed into another prime (677473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338735 + 338736.

It is an arithmetic number, because the mean of its divisors is an integer number (338736).

2⁶⁷⁷⁴⁷¹ is an apocalyptic number.

677471 is a deficient number, since it is larger than the sum of its proper divisors (1).

677471 is an equidigital number, since it uses as much as digits as its factorization.

677471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8232, while the sum is 32.

The square root of 677471 is about 823.0862652238. The cubic root of 677471 is about 87.8274425039.

It can be divided in two parts, 6 and 77471, that added together give a palindrome (77477).

The spelling of 677471 in words is "six hundred seventy-seven thousand, four hundred seventy-one".