669752 has 8 divisors (see below), whose sum is σ = 1255800. Its totient is φ = 334872.

The previous prime is 669733. The next prime is 669763. The reversal of 669752 is 257966.

It is a tau number, because it is divible by the number of its divisors (8).

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, 41852 + ... + 41867.

It is an arithmetic number, because the mean of its divisors is an integer number (156975).

2⁶⁶⁹⁷⁵² is an apocalyptic number.

It is an amenable number.

669752 is a deficient number, since it is larger than the sum of its proper divisors (586048).

669752 is a wasteful number, since it uses less digits than its factorization.

669752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83725 (or 83721 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 669752 is about 818.3837730552. The cubic root of 669752 is about 87.4926034564.

The spelling of 669752 in words is "six hundred sixty-nine thousand, seven hundred fifty-two".