513798073 has 2 divisors, whose sum is σ = 513798074. Its totient is φ = 513798072.

The previous prime is 513798053. The next prime is 513798079. The reversal of 513798073 is 370897315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513792889 + 5184 = 22667^2 + 72^2 .

It is a cyclic number.

It is not a de Polignac number, because 513798073 - 2¹⁷ = 513667001 is a prime.

It is not a weakly prime, because it can be changed into another prime (513798079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256899036 + 256899037.

It is an arithmetic number, because the mean of its divisors is an integer number (256899037).

Almost surely, 2^513798073 is an apocalyptic number.

It is an amenable number.

513798073 is a deficient number, since it is larger than the sum of its proper divisors (1).

513798073 is an equidigital number, since it uses as much as digits as its factorization.

513798073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 513798073 is about 22667.1143509711. The cubic root of 513798073 is about 800.9354022063.

The spelling of 513798073 in words is "five hundred thirteen million, seven hundred ninety-eight thousand, seventy-three".