669077 has 2 divisors, whose sum is σ = 669078. Its totient is φ = 669076.

The previous prime is 669049. The next prime is 669089. The reversal of 669077 is 770966.

669077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538756 + 130321 = 734^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 669077 - 2⁸ = 668821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334538 + 334539.

It is an arithmetic number, because the mean of its divisors is an integer number (334539).

2⁶⁶⁹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

669077 is a deficient number, since it is larger than the sum of its proper divisors (1).

669077 is an equidigital number, since it uses as much as digits as its factorization.

669077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 669077 is about 817.9712708891. The cubic root of 669077 is about 87.4632008524.

The spelling of 669077 in words is "six hundred sixty-nine thousand, seventy-seven".