73000063 has 2 divisors, whose sum is σ = 73000064. Its totient is φ = 73000062.

The previous prime is 73000061. The next prime is 73000093. The reversal of 73000063 is 36000037.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73000063 - 2¹ = 73000061 is a prime.

Together with 73000061, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 73000063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73000061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36500031 + 36500032.

It is an arithmetic number, because the mean of its divisors is an integer number (36500032).

Almost surely, 2^73000063 is an apocalyptic number.

73000063 is a deficient number, since it is larger than the sum of its proper divisors (1).

73000063 is an equidigital number, since it uses as much as digits as its factorization.

73000063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 19.

The square root of 73000063 is about 8544.0074321129. The cubic root of 73000063 is about 417.9340398657.

The spelling of 73000063 in words is "seventy-three million, sixty-three", and thus it is an aban number and an uban number.