73908749 has 2 divisors, whose sum is σ = 73908750. Its totient is φ = 73908748.

The previous prime is 73908739. The next prime is 73908811. The reversal of 73908749 is 94780937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49603849 + 24304900 = 7043^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 73908749 - 2²⁴ = 57131533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73908739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36954374 + 36954375.

It is an arithmetic number, because the mean of its divisors is an integer number (36954375).

Almost surely, 2^73908749 is an apocalyptic number.

It is an amenable number.

73908749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73908749 is an equidigital number, since it uses as much as digits as its factorization.

73908749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 73908749 is about 8597.0197743171. The cubic root of 73908749 is about 419.6610057510.

The spelling of 73908749 in words is "seventy-three million, nine hundred eight thousand, seven hundred forty-nine".