669236 has 6 divisors (see below), whose sum is σ = 1171170. Its totient is φ = 334616.

The previous prime is 669181. The next prime is 669241. The reversal of 669236 is 632966.

It can be written as a sum of positive squares in only one way, i.e., 649636 + 19600 = 806^2 + 140^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83651 + ... + 83658.

It is an arithmetic number, because the mean of its divisors is an integer number (195195).

2⁶⁶⁹²³⁶ is an apocalyptic number.

It is an amenable number.

669236 is a deficient number, since it is larger than the sum of its proper divisors (501934).

669236 is a wasteful number, since it uses less digits than its factorization.

669236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167313 (or 167311 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 669236 is about 818.0684567932. The cubic root of 669236 is about 87.4701285789.

It can be divided in two parts, 6 and 69236, that multiplied together give a triangular number (415416 = T₉₁₁).

The spelling of 669236 in words is "six hundred sixty-nine thousand, two hundred thirty-six".