733609 has 4 divisors (see below), whose sum is σ = 772240. Its totient is φ = 694980.

The previous prime is 733591. The next prime is 733619. The reversal of 733609 is 906337.

733609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 906337 = 29 ⋅31253.

It is a cyclic number.

It is not a de Polignac number, because 733609 - 2⁹ = 733097 is a prime.

It is a Duffinian number.

733609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (733619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19287 + ... + 19324.

It is an arithmetic number, because the mean of its divisors is an integer number (193060).

2⁷³³⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

733609 is a deficient number, since it is larger than the sum of its proper divisors (38631).

733609 is a wasteful number, since it uses less digits than its factorization.

733609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38630.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 733609 is about 856.5097781111. The cubic root of 733609 is about 90.1892724577.

The spelling of 733609 in words is "seven hundred thirty-three thousand, six hundred nine".