513704377 has 2 divisors, whose sum is σ = 513704378. Its totient is φ = 513704376.

The previous prime is 513704357. The next prime is 513704393. The reversal of 513704377 is 773407315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502252921 + 11451456 = 22411^2 + 3384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513704377 is a prime.

It is equal to p_27038764 and since 513704377 and 27038764 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (513704357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256852188 + 256852189.

It is an arithmetic number, because the mean of its divisors is an integer number (256852189).

Almost surely, 2^513704377 is an apocalyptic number.

It is an amenable number.

513704377 is a deficient number, since it is larger than the sum of its proper divisors (1).

513704377 is an equidigital number, since it uses as much as digits as its factorization.

513704377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 513704377 is about 22665.0474740293. The cubic root of 513704377 is about 800.8867131658.

The spelling of 513704377 in words is "five hundred thirteen million, seven hundred four thousand, three hundred seventy-seven".