7203649 has 2 divisors, whose sum is σ = 7203650. Its totient is φ = 7203648.

The previous prime is 7203617. The next prime is 7203667. The reversal of 7203649 is 9463027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873024 + 3330625 = 1968^2 + 1825^2 .

It is a cyclic number.

It is not a de Polignac number, because 7203649 - 2⁵ = 7203617 is a prime.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 7203649.

It is not a weakly prime, because it can be changed into another prime (7203689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3601824 + 3601825.

It is an arithmetic number, because the mean of its divisors is an integer number (3601825).

Almost surely, 2^7203649 is an apocalyptic number.

It is an amenable number.

7203649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7203649 is an equidigital number, since it uses as much as digits as its factorization.

7203649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 7203649 is about 2683.9614378750. The cubic root of 7203649 is about 193.1304924374.

The spelling of 7203649 in words is "seven million, two hundred three thousand, six hundred forty-nine".