7226287 has 4 divisors (see below), whose sum is σ = 7262800. Its totient is φ = 7189776.

The previous prime is 7226281. The next prime is 7226321. The reversal of 7226287 is 7826227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7226287 - 2⁷ = 7226159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7226281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17958 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (1815700).

Almost surely, 2^7226287 is an apocalyptic number.

7226287 is a deficient number, since it is larger than the sum of its proper divisors (36513).

7226287 is a wasteful number, since it uses less digits than its factorization.

7226287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36512.

The product of its digits is 18816, while the sum is 34.

The square root of 7226287 is about 2688.1754035033. The cubic root of 7226287 is about 193.3325898373.

The spelling of 7226287 in words is "seven million, two hundred twenty-six thousand, two hundred eighty-seven".