7320749 has 2 divisors, whose sum is σ = 7320750. Its totient is φ = 7320748.

The previous prime is 7320737. The next prime is 7320763. The reversal of 7320749 is 9470237.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4818025 + 2502724 = 2195^2 + 1582^2 .

It is a cyclic number.

It is not a de Polignac number, because 7320749 - 2²⁰ = 6272173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7320799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3660374 + 3660375.

It is an arithmetic number, because the mean of its divisors is an integer number (3660375).

Almost surely, 2^7320749 is an apocalyptic number.

It is an amenable number.

7320749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7320749 is an equidigital number, since it uses as much as digits as its factorization.

7320749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 7320749 is about 2705.6882673361. The cubic root of 7320749 is about 194.1713599124.

The spelling of 7320749 in words is "seven million, three hundred twenty thousand, seven hundred forty-nine".