7272733 has 8 divisors (see below), whose sum is σ = 7999488. Its totient is φ = 6569904.

The previous prime is 7272721. The next prime is 7272737. The reversal of 7272733 is 3372727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7272733 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7272695 and 7272704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5341 + ... + 6562.

It is an arithmetic number, because the mean of its divisors is an integer number (999936).

Almost surely, 2^7272733 is an apocalyptic number.

It is an amenable number.

7272733 is a deficient number, since it is larger than the sum of its proper divisors (726755).

7272733 is a wasteful number, since it uses less digits than its factorization.

7272733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11963.

The product of its digits is 12348, while the sum is 31.

The square root of 7272733 is about 2696.8005117175. The cubic root of 7272733 is about 193.7459120886.

It can be divided in two parts, 727 and 2733, that multiplied together give a palindrome (1986891).

The spelling of 7272733 in words is "seven million, two hundred seventy-two thousand, seven hundred thirty-three".