7297228 has 6 divisors (see below), whose sum is σ = 12770156. Its totient is φ = 3648612.

The previous prime is 7297189. The next prime is 7297231. The reversal of 7297228 is 8227927.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912150 + ... + 912157.

Almost surely, 2^7297228 is an apocalyptic number.

It is an amenable number.

7297228 is a deficient number, since it is larger than the sum of its proper divisors (5472928).

7297228 is a wasteful number, since it uses less digits than its factorization.

7297228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824311 (or 1824309 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 7297228 is about 2701.3381868992. The cubic root of 7297228 is about 193.9631842846.

The spelling of 7297228 in words is "seven million, two hundred ninety-seven thousand, two hundred twenty-eight".