7206649 has 2 divisors, whose sum is σ = 7206650. Its totient is φ = 7206648.

The previous prime is 7206631. The next prime is 7206677. The reversal of 7206649 is 9466027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6285049 + 921600 = 2507^2 + 960^2 .

It is an emirp because it is prime and its reverse (9466027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7206649 - 2²¹ = 5109497 is a prime.

It is not a weakly prime, because it can be changed into another prime (7206629) 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 as a sum of consecutive naturals, namely, 3603324 + 3603325.

It is an arithmetic number, because the mean of its divisors is an integer number (3603325).

Almost surely, 2^7206649 is an apocalyptic number.

It is an amenable number.

7206649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7206649 is an equidigital number, since it uses as much as digits as its factorization.

7206649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 7206649 is about 2684.5202550921. The cubic root of 7206649 is about 193.1572988086.

The spelling of 7206649 in words is "seven million, two hundred six thousand, six hundred forty-nine".