669029 has 2 divisors, whose sum is σ = 669030. Its totient is φ = 669028.

The previous prime is 669023. The next prime is 669049. The reversal of 669029 is 920966.

669029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 388129 + 280900 = 623^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 669029 - 2¹² = 664933 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 668986 and 669004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334514 + 334515.

It is an arithmetic number, because the mean of its divisors is an integer number (334515).

2⁶⁶⁹⁰²⁹ is an apocalyptic number.

It is an amenable number.

669029 is a deficient number, since it is larger than the sum of its proper divisors (1).

669029 is an equidigital number, since it uses as much as digits as its factorization.

669029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 669029 is about 817.9419294791. The cubic root of 669029 is about 87.4611092476.

The spelling of 669029 in words is "six hundred sixty-nine thousand, twenty-nine".