7272789 has 4 divisors (see below), whose sum is σ = 9697056. Its totient is φ = 4848524.

The previous prime is 7272779. The next prime is 7272791. The reversal of 7272789 is 9872727.

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.

It is a cyclic number.

It is not a de Polignac number, because 7272789 - 2¹² = 7268693 is a prime.

It is an alternating number because its digits alternate between odd and even.

7272789 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7272789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7272779) 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, 1212129 + ... + 1212134.

It is an arithmetic number, because the mean of its divisors is an integer number (2424264).

Almost surely, 2^7272789 is an apocalyptic number.

It is an amenable number.

7272789 is a deficient number, since it is larger than the sum of its proper divisors (2424267).

7272789 is a wasteful number, since it uses less digits than its factorization.

7272789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424266.

The product of its digits is 98784, while the sum is 42.

The square root of 7272789 is about 2696.8108943713. The cubic root of 7272789 is about 193.7464093681.

The spelling of 7272789 in words is "seven million, two hundred seventy-two thousand, seven hundred eighty-nine".