7206645 has 16 divisors (see below), whose sum is σ = 11928960. Its totient is φ = 3710784.

The previous prime is 7206631. The next prime is 7206649. The reversal of 7206645 is 5466027.

It is not a de Polignac number, because 7206645 - 2⁴ = 7206629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7206649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7849 + ... + 8718.

It is an arithmetic number, because the mean of its divisors is an integer number (745560).

Almost surely, 2^7206645 is an apocalyptic number.

It is an amenable number.

7206645 is a deficient number, since it is larger than the sum of its proper divisors (4722315).

7206645 is a wasteful number, since it uses less digits than its factorization.

7206645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16604.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 7206645 is about 2684.5195100800. The cubic root of 7206645 is about 193.1572630717.

The spelling of 7206645 in words is "seven million, two hundred six thousand, six hundred forty-five".