7207506749 has 2 divisors, whose sum is σ = 7207506750. Its totient is φ = 7207506748.

The previous prime is 7207506743. The next prime is 7207506763. The reversal of 7207506749 is 9476057027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7206312100 + 1194649 = 84890^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 7207506749 - 2²⁰ = 7206458173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7207506743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3603753374 + 3603753375.

It is an arithmetic number, because the mean of its divisors is an integer number (3603753375).

Almost surely, 2^7207506749 is an apocalyptic number.

It is an amenable number.

7207506749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7207506749 is an equidigital number, since it uses as much as digits as its factorization.

7207506749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 7207506749 is about 84897.0361614585. The cubic root of 7207506749 is about 1931.6496182027.

The spelling of 7207506749 in words is "seven billion, two hundred seven million, five hundred six thousand, seven hundred forty-nine".