669361 has 8 divisors (see below), whose sum is σ = 834624. Its totient is φ = 521520.

The previous prime is 669359. The next prime is 669371. The reversal of 669361 is 163966.

669361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669361 - 2¹ = 669359 is a prime.

669361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (669301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4270 + ... + 4423.

It is an arithmetic number, because the mean of its divisors is an integer number (104328).

2⁶⁶⁹³⁶¹ is an apocalyptic number.

It is an amenable number.

669361 is a deficient number, since it is larger than the sum of its proper divisors (165263).

669361 is a wasteful number, since it uses less digits than its factorization.

669361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711.

The product of its digits is 5832, while the sum is 31.

The square root of 669361 is about 818.1448527003. The cubic root of 669361 is about 87.4755741345.

The spelling of 669361 in words is "six hundred sixty-nine thousand, three hundred sixty-one".