730203073 has 2 divisors, whose sum is σ = 730203074. Its totient is φ = 730203072.

The previous prime is 730203059. The next prime is 730203107. The reversal of 730203073 is 370302037.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487217329 + 242985744 = 22073^2 + 15588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730203073 is a prime.

It is not a weakly prime, because it can be changed into another prime (730203043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365101536 + 365101537.

It is an arithmetic number, because the mean of its divisors is an integer number (365101537).

Almost surely, 2^730203073 is an apocalyptic number.

It is an amenable number.

730203073 is a deficient number, since it is larger than the sum of its proper divisors (1).

730203073 is an equidigital number, since it uses as much as digits as its factorization.

730203073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646, while the sum is 25.

The square root of 730203073 is about 27022.2699453617. The cubic root of 730203073 is about 900.4948196680.

The spelling of 730203073 in words is "seven hundred thirty million, two hundred three thousand, seventy-three".