627961 has 2 divisors, whose sum is σ = 627962. Its totient is φ = 627960.

The previous prime is 627953. The next prime is 627973. The reversal of 627961 is 169726.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518400 + 109561 = 720^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 627961 - 2³ = 627953 is a prime.

It is not a weakly prime, because it can be changed into another prime (627901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313980 + 313981.

It is an arithmetic number, because the mean of its divisors is an integer number (313981).

2⁶²⁷⁹⁶¹ is an apocalyptic number.

It is an amenable number.

627961 is a deficient number, since it is larger than the sum of its proper divisors (1).

627961 is an equidigital number, since it uses as much as digits as its factorization.

627961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 627961 is about 792.4399030841. The cubic root of 627961 is about 85.6336043709.

The spelling of 627961 in words is "six hundred twenty-seven thousand, nine hundred sixty-one".