676961 has 2 divisors, whose sum is σ = 676962. Its totient is φ = 676960.

The previous prime is 676943. The next prime is 676967. The reversal of 676961 is 169676.

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., 516961 + 160000 = 719^2 + 400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676961 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (676967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338480 + 338481.

It is an arithmetic number, because the mean of its divisors is an integer number (338481).

2⁶⁷⁶⁹⁶¹ is an apocalyptic number.

It is an amenable number.

676961 is a deficient number, since it is larger than the sum of its proper divisors (1).

676961 is an equidigital number, since it uses as much as digits as its factorization.

676961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 676961 is about 822.7763973280. The cubic root of 676961 is about 87.8053981457.

It can be divided in two parts, 676 and 961, that multiplied together give a square (649636 = 806²).

The spelling of 676961 in words is "six hundred seventy-six thousand, nine hundred sixty-one".