7272947 has 6 divisors (see below), whose sum is σ = 7994364. Its totient is φ = 6611660.

The previous prime is 7272943. The next prime is 7272971. The reversal of 7272947 is 7492727.

It is not a de Polignac number, because 7272947 - 2² = 7272943 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7272947.

It is not an unprimeable number, because it can be changed into a prime (7272943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29933 + ... + 30174.

It is an arithmetic number, because the mean of its divisors is an integer number (1332394).

Almost surely, 2^7272947 is an apocalyptic number.

7272947 is a deficient number, since it is larger than the sum of its proper divisors (721417).

7272947 is a wasteful number, since it uses less digits than its factorization.

7272947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60129 (or 60118 counting only the distinct ones).

The product of its digits is 49392, while the sum is 38.

The square root of 7272947 is about 2696.8401880720. The cubic root of 7272947 is about 193.7478123929.

The spelling of 7272947 in words is "seven million, two hundred seventy-two thousand, nine hundred forty-seven".