7288645 has 32 divisors (see below), whose sum is σ = 10950912. Its totient is φ = 4534272.

The previous prime is 7288643. The next prime is 7288649. The reversal of 7288645 is 5468827.

It is a cyclic number.

It is not a de Polignac number, because 7288645 - 2¹ = 7288643 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7288598 and 7288607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7288643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37669 + ... + 37861.

It is an arithmetic number, because the mean of its divisors is an integer number (342216).

Almost surely, 2^7288645 is an apocalyptic number.

It is an amenable number.

7288645 is a deficient number, since it is larger than the sum of its proper divisors (3662267).

7288645 is a wasteful number, since it uses less digits than its factorization.

7288645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 107520, while the sum is 40.

The square root of 7288645 is about 2699.7490624130. The cubic root of 7288645 is about 193.8871079469.

The spelling of 7288645 in words is "seven million, two hundred eighty-eight thousand, six hundred forty-five".