669796 has 6 divisors (see below), whose sum is σ = 1172150. Its totient is φ = 334896.

The previous prime is 669791. The next prime is 669839. The reversal of 669796 is 697966.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 509796 + 160000 = 714^2 + 400^2 .

It is not an unprimeable number, because it can be changed into a prime (669791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83721 + ... + 83728.

2⁶⁶⁹⁷⁹⁶ is an apocalyptic number.

It is an amenable number.

669796 is a deficient number, since it is larger than the sum of its proper divisors (502354).

669796 is a wasteful number, since it uses less digits than its factorization.

669796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167453 (or 167451 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 669796 is about 818.4106548671. The cubic root of 669796 is about 87.4945193846.

The spelling of 669796 in words is "six hundred sixty-nine thousand, seven hundred ninety-six".