669011 has 8 divisors (see below), whose sum is σ = 789504. Its totient is φ = 554760.

The previous prime is 668999. The next prime is 669023. The reversal of 669011 is 110966.

669011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (668999) and next prime (669023).

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 669011 - 2⁶ = 668947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669091) 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, 1325 + ... + 1758.

It is an arithmetic number, because the mean of its divisors is an integer number (98688).

2⁶⁶⁹⁰¹¹ is an apocalyptic number.

669011 is a deficient number, since it is larger than the sum of its proper divisors (120493).

669011 is a wasteful number, since it uses less digits than its factorization.

669011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 669011 is about 817.9309261790. The cubic root of 669011 is about 87.4603248700.

Adding to 669011 its reverse (110966), we get a palindrome (779977).

The spelling of 669011 in words is "six hundred sixty-nine thousand, eleven".