73719473 has 2 divisors, whose sum is σ = 73719474. Its totient is φ = 73719472.

The previous prime is 73719467. The next prime is 73719491. The reversal of 73719473 is 37491737.

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., 64128064 + 9591409 = 8008^2 + 3097^2 .

It is an emirp because it is prime and its reverse (37491737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73719473 - 2⁶ = 73719409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73719473.

It is not a weakly prime, because it can be changed into another prime (73719413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36859736 + 36859737.

It is an arithmetic number, because the mean of its divisors is an integer number (36859737).

Almost surely, 2^73719473 is an apocalyptic number.

It is an amenable number.

73719473 is a deficient number, since it is larger than the sum of its proper divisors (1).

73719473 is an equidigital number, since it uses as much as digits as its factorization.

73719473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 41.

The square root of 73719473 is about 8586.0044840426. The cubic root of 73719473 is about 419.3024570408.

The spelling of 73719473 in words is "seventy-three million, seven hundred nineteen thousand, four hundred seventy-three".