7227321 has 8 divisors (see below), whose sum is σ = 9897024. Its totient is φ = 4687920.

The previous prime is 7227317. The next prime is 7227343. The reversal of 7227321 is 1237227.

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

It is not a de Polignac number, because 7227321 - 2² = 7227317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7227291 and 7227300.

It is not an unprimeable number, because it can be changed into a prime (7227301) 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, 32445 + ... + 32666.

It is an arithmetic number, because the mean of its divisors is an integer number (1237128).

Almost surely, 2^7227321 is an apocalyptic number.

It is an amenable number.

7227321 is a deficient number, since it is larger than the sum of its proper divisors (2669703).

7227321 is a wasteful number, since it uses less digits than its factorization.

7227321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65151.

The product of its digits is 1176, while the sum is 24.

The square root of 7227321 is about 2688.3677203835. The cubic root of 7227321 is about 193.3418106337.

The spelling of 7227321 in words is "seven million, two hundred twenty-seven thousand, three hundred twenty-one".