732666 has 32 divisors (see below), whose sum is σ = 1695168. Its totient is φ = 208640.

The previous prime is 732653. The next prime is 732673. The reversal of 732666 is 666237.

It is a congruent number.

It is an unprimeable number.

732666 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (52974).

2⁷³²⁶⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 732666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847584).

732666 is an abundant number, since it is smaller than the sum of its proper divisors (962502).

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

732666 is a wasteful number, since it uses less digits than its factorization.

732666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its digits is 9072, while the sum is 30.

The square root of 732666 is about 855.9591111730. The cubic root of 732666 is about 90.1506120127.

The spelling of 732666 in words is "seven hundred thirty-two thousand, six hundred sixty-six".