669762 has 32 divisors (see below), whose sum is σ = 1516800. Its totient is φ = 219024.

The previous prime is 669733. The next prime is 669763. The reversal of 669762 is 267966.

It is a super-2 number, since 2×669762² = 897162273288, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669762.

It is not an unprimeable number, because it can be changed into a prime (669763) by changing a digit.

669762 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188 + ... + 4344.

It is an arithmetic number, because the mean of its divisors is an integer number (47400).

2⁶⁶⁹⁷⁶² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758400).

669762 is an abundant number, since it is smaller than the sum of its proper divisors (847038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669762 is a wasteful number, since it uses less digits than its factorization.

669762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 669762 is about 818.3898826354. The cubic root of 669762 is about 87.4930389020.

It can be divided in two parts, 669 and 762, that added together give a triangular number (1431 = T₅₃).

The spelling of 669762 in words is "six hundred sixty-nine thousand, seven hundred sixty-two".