629617 has 2 divisors, whose sum is σ = 629618. Its totient is φ = 629616.

The previous prime is 629611. The next prime is 629623. The reversal of 629617 is 716926.

It is a balanced prime because it is at equal distance from previous prime (629611) and next prime (629623).

It can be written as a sum of positive squares in only one way, i.e., 571536 + 58081 = 756^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 629617 - 2³ = 629609 is a prime.

It is not a weakly prime, because it can be changed into another prime (629611) 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, 314808 + 314809.

It is an arithmetic number, because the mean of its divisors is an integer number (314809).

2⁶²⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

629617 is a deficient number, since it is larger than the sum of its proper divisors (1).

629617 is an equidigital number, since it uses as much as digits as its factorization.

629617 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 629617 is about 793.4840893175. The cubic root of 629617 is about 85.7088132750.

The spelling of 629617 in words is "six hundred twenty-nine thousand, six hundred seventeen".