520600387 has 2 divisors, whose sum is σ = 520600388. Its totient is φ = 520600386.

The previous prime is 520600363. The next prime is 520600429. The reversal of 520600387 is 783006025.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520600387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520600307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260300193 + 260300194.

It is an arithmetic number, because the mean of its divisors is an integer number (260300194).

Almost surely, 2^520600387 is an apocalyptic number.

520600387 is a deficient number, since it is larger than the sum of its proper divisors (1).

520600387 is an equidigital number, since it uses as much as digits as its factorization.

520600387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 520600387 is about 22816.6690601411. The cubic root of 520600387 is about 804.4545187709.

The spelling of 520600387 in words is "five hundred twenty million, six hundred thousand, three hundred eighty-seven".