735668 has 6 divisors (see below), whose sum is σ = 1287426. Its totient is φ = 367832.

The previous prime is 735659. The next prime is 735673. The reversal of 735668 is 866537.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 446224 + 289444 = 668^2 + 538^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

735668 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91955 + ... + 91962.

It is an arithmetic number, because the mean of its divisors is an integer number (214571).

2⁷³⁵⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

735668 is a deficient number, since it is larger than the sum of its proper divisors (551758).

735668 is a wasteful number, since it uses less digits than its factorization.

735668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183921 (or 183919 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 735668 is about 857.7109070077. The cubic root of 735668 is about 90.2735708826.

The spelling of 735668 in words is "seven hundred thirty-five thousand, six hundred sixty-eight".