73631749 has 2 divisors, whose sum is σ = 73631750. Its totient is φ = 73631748.

The previous prime is 73631699. The next prime is 73631843. The reversal of 73631749 is 94713637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73530625 + 101124 = 8575^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 73631749 - 2¹⁷ = 73500677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73631849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36815874 + 36815875.

It is an arithmetic number, because the mean of its divisors is an integer number (36815875).

Almost surely, 2^73631749 is an apocalyptic number.

It is an amenable number.

73631749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73631749 is an equidigital number, since it uses as much as digits as its factorization.

73631749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 40.

The square root of 73631749 is about 8580.8944172505. The cubic root of 73631749 is about 419.1360718372.

The spelling of 73631749 in words is "seventy-three million, six hundred thirty-one thousand, seven hundred forty-nine".