733231 has 4 divisors (see below), whose sum is σ = 737464. Its totient is φ = 729000.

The previous prime is 733189. The next prime is 733237. The reversal of 733231 is 132337.

733231 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 an emirpimes, since its reverse is a distinct semiprime: 132337 = 59 ⋅2243.

It is a 3-Lehmer number, since φ(733231) divides (733231-1)³.

It is a cyclic number.

It is not a de Polignac number, because 733231 - 2¹¹ = 731183 is a prime.

It is a super-2 number, since 2×733231² = 1075255398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 733199 and 733208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733237) 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, 1845 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (184366).

2⁷³³²³¹ is an apocalyptic number.

733231 is a deficient number, since it is larger than the sum of its proper divisors (4233).

733231 is a wasteful number, since it uses less digits than its factorization.

733231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232.

The product of its digits is 378, while the sum is 19.

The square root of 733231 is about 856.2890866991. The cubic root of 733231 is about 90.1737794626.

Adding to 733231 its reverse (132337), we get a palindrome (865568).

The spelling of 733231 in words is "seven hundred thirty-three thousand, two hundred thirty-one".