73061473 has 2 divisors, whose sum is σ = 73061474. Its totient is φ = 73061472.

The previous prime is 73061447. The next prime is 73061477. The reversal of 73061473 is 37416037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70023424 + 3038049 = 8368^2 + 1743^2 .

It is an emirp because it is prime and its reverse (37416037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73061473 - 2⁹ = 73060961 is a prime.

It is not a weakly prime, because it can be changed into another prime (73061477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36530736 + 36530737.

It is an arithmetic number, because the mean of its divisors is an integer number (36530737).

Almost surely, 2^73061473 is an apocalyptic number.

It is an amenable number.

73061473 is a deficient number, since it is larger than the sum of its proper divisors (1).

73061473 is an equidigital number, since it uses as much as digits as its factorization.

73061473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 73061473 is about 8547.6004235107. The cubic root of 73061473 is about 418.0512002025.

The spelling of 73061473 in words is "seventy-three million, sixty-one thousand, four hundred seventy-three".