73073747 has 2 divisors, whose sum is σ = 73073748. Its totient is φ = 73073746.

The previous prime is 73073729. The next prime is 73073821. The reversal of 73073747 is 74737037.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73073747 - 2¹⁰ = 73072723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73073747.

It is not a weakly prime, because it can be changed into another prime (73073647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36536873 + 36536874.

It is an arithmetic number, because the mean of its divisors is an integer number (36536874).

Almost surely, 2^73073747 is an apocalyptic number.

73073747 is a deficient number, since it is larger than the sum of its proper divisors (1).

73073747 is an equidigital number, since it uses as much as digits as its factorization.

73073747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86436, while the sum is 38.

The square root of 73073747 is about 8548.3183726391. The cubic root of 73073747 is about 418.0746091343.

The spelling of 73073747 in words is "seventy-three million, seventy-three thousand, seven hundred forty-seven".