7272147 has 8 divisors (see below), whose sum is σ = 9773056. Its totient is φ = 4809672.

The previous prime is 7272143. The next prime is 7272149. The reversal of 7272147 is 7412727.

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

It is not a de Polignac number, because 7272147 - 2² = 7272143 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7272143) 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, 9163 + ... + 9924.

It is an arithmetic number, because the mean of its divisors is an integer number (1221632).

Almost surely, 2^7272147 is an apocalyptic number.

7272147 is a deficient number, since it is larger than the sum of its proper divisors (2500909).

7272147 is a wasteful number, since it uses less digits than its factorization.

7272147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19217.

The product of its digits is 5488, while the sum is 30.

The square root of 7272147 is about 2696.6918622638. The cubic root of 7272147 is about 193.7407082606.

The spelling of 7272147 in words is "seven million, two hundred seventy-two thousand, one hundred forty-seven".