7312733 has 4 divisors (see below), whose sum is σ = 7388220. Its totient is φ = 7237248.

The previous prime is 7312699. The next prime is 7312751. The reversal of 7312733 is 3372137.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2393209 + 4919524 = 1547^2 + 2218^2 .

It is a cyclic number.

It is not a de Polignac number, because 7312733 - 2¹⁰ = 7311709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7312133) 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, 37598 + ... + 37791.

It is an arithmetic number, because the mean of its divisors is an integer number (1847055).

Almost surely, 2^7312733 is an apocalyptic number.

It is an amenable number.

7312733 is a deficient number, since it is larger than the sum of its proper divisors (75487).

7312733 is an equidigital number, since it uses as much as digits as its factorization.

7312733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75486.

The product of its digits is 2646, while the sum is 26.

The square root of 7312733 is about 2704.2065379701. The cubic root of 7312733 is about 194.1004634297.

The spelling of 7312733 in words is "seven million, three hundred twelve thousand, seven hundred thirty-three".