735669 has 16 divisors (see below), whose sum is σ = 1189440. Its totient is φ = 445680.

The previous prime is 735659. The next prime is 735673. The reversal of 735669 is 966537.

It is a happy number.

It is not a de Polignac number, because 735669 - 2⁴ = 735653 is a prime.

It is a super-2 number, since 2×735669² = 1082417755122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (735649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942 + ... + 1535.

It is an arithmetic number, because the mean of its divisors is an integer number (74340).

2⁷³⁵⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

735669 is a deficient number, since it is larger than the sum of its proper divisors (453771).

735669 is a wasteful number, since it uses less digits than its factorization.

735669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2491 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 735669 is about 857.7114899545. The cubic root of 735669 is about 90.2736117858.

The spelling of 735669 in words is "seven hundred thirty-five thousand, six hundred sixty-nine".