73749271 has 4 divisors (see below), whose sum is σ = 73846944. Its totient is φ = 73651600.

The previous prime is 73749239. The next prime is 73749323. The reversal of 73749271 is 17294737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17294737 = 431 ⋅40127.

It is a cyclic number.

It is not a de Polignac number, because 73749271 - 2⁵ = 73749239 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73749971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47695 + ... + 49216.

It is an arithmetic number, because the mean of its divisors is an integer number (18461736).

Almost surely, 2^73749271 is an apocalyptic number.

73749271 is a deficient number, since it is larger than the sum of its proper divisors (97673).

73749271 is an equidigital number, since it uses as much as digits as its factorization.

73749271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97672.

The product of its digits is 74088, while the sum is 40.

The square root of 73749271 is about 8587.7395745330. The cubic root of 73749271 is about 419.3589445651.

The spelling of 73749271 in words is "seventy-three million, seven hundred forty-nine thousand, two hundred seventy-one".