73407073 has 2 divisors, whose sum is σ = 73407074. Its totient is φ = 73407072.

The previous prime is 73407049. The next prime is 73407107. The reversal of 73407073 is 37070437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70694464 + 2712609 = 8408^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 73407073 - 2⁵ = 73407041 is a prime.

It is not a weakly prime, because it can be changed into another prime (73407043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36703536 + 36703537.

It is an arithmetic number, because the mean of its divisors is an integer number (36703537).

Almost surely, 2^73407073 is an apocalyptic number.

It is an amenable number.

73407073 is a deficient number, since it is larger than the sum of its proper divisors (1).

73407073 is an equidigital number, since it uses as much as digits as its factorization.

73407073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12348, while the sum is 31.

The square root of 73407073 is about 8567.7927729375. The cubic root of 73407073 is about 418.7093276603.

The spelling of 73407073 in words is "seventy-three million, four hundred seven thousand, seventy-three".