677441 has 2 divisors, whose sum is σ = 677442. Its totient is φ = 677440.

The previous prime is 677423. The next prime is 677447. The reversal of 677441 is 144776.

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., 672400 + 5041 = 820^2 + 71^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677441 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 677441.

It is not a weakly prime, because it can be changed into another prime (677447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338720 + 338721.

It is an arithmetic number, because the mean of its divisors is an integer number (338721).

2⁶⁷⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

677441 is a deficient number, since it is larger than the sum of its proper divisors (1).

677441 is an equidigital number, since it uses as much as digits as its factorization.

677441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 677441 is about 823.0680409298. The cubic root of 677441 is about 87.8261460833.

The spelling of 677441 in words is "six hundred seventy-seven thousand, four hundred forty-one".