73030973 has 2 divisors, whose sum is σ = 73030974. Its totient is φ = 73030972.

The previous prime is 73030943. The next prime is 73031027. The reversal of 73030973 is 37903037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68591524 + 4439449 = 8282^2 + 2107^2 .

It is an emirp because it is prime and its reverse (37903037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73030973 - 2¹⁰ = 73029949 is a prime.

It is a super-3 number, since 3×73030973³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73030943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36515486 + 36515487.

It is an arithmetic number, because the mean of its divisors is an integer number (36515487).

Almost surely, 2^73030973 is an apocalyptic number.

It is an amenable number.

73030973 is a deficient number, since it is larger than the sum of its proper divisors (1).

73030973 is an equidigital number, since it uses as much as digits as its factorization.

73030973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11907, while the sum is 32.

The square root of 73030973 is about 8545.8161108229. The cubic root of 73030973 is about 417.9930193503.

The spelling of 73030973 in words is "seventy-three million, thirty thousand, nine hundred seventy-three".