7272889 has 8 divisors (see below), whose sum is σ = 8293320. Its totient is φ = 6318336.

The previous prime is 7272887. The next prime is 7272907. The reversal of 7272889 is 9882727.

It can be written as a sum of positive squares in 4 ways, for example, as 1946025 + 5326864 = 1395^2 + 2308^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7272889 - 2¹ = 7272887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7272883) 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, 16234 + ... + 16675.

It is an arithmetic number, because the mean of its divisors is an integer number (1036665).

Almost surely, 2^7272889 is an apocalyptic number.

It is an amenable number.

7272889 is a deficient number, since it is larger than the sum of its proper divisors (1020431).

7272889 is a wasteful number, since it uses less digits than its factorization.

7272889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32939.

The product of its digits is 112896, while the sum is 43.

The square root of 7272889 is about 2696.8294347252. The cubic root of 7272889 is about 193.7472973608.

The spelling of 7272889 in words is "seven million, two hundred seventy-two thousand, eight hundred eighty-nine".