73768549 has 2 divisors, whose sum is σ = 73768550. Its totient is φ = 73768548.

The previous prime is 73768529. The next prime is 73768571. The reversal of 73768549 is 94586737.

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., 52099524 + 21669025 = 7218^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 73768549 - 2¹⁷ = 73637477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73768529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36884274 + 36884275.

It is an arithmetic number, because the mean of its divisors is an integer number (36884275).

Almost surely, 2^73768549 is an apocalyptic number.

It is an amenable number.

73768549 is a deficient number, since it is larger than the sum of its proper divisors (1).

73768549 is an equidigital number, since it uses as much as digits as its factorization.

73768549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The square root of 73768549 is about 8588.8619152947. The cubic root of 73768549 is about 419.3954814117.

The spelling of 73768549 in words is "seventy-three million, seven hundred sixty-eight thousand, five hundred forty-nine".