512870387 has 2 divisors, whose sum is σ = 512870388. Its totient is φ = 512870386.

The previous prime is 512870317. The next prime is 512870419. The reversal of 512870387 is 783078215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512870387 - 2⁸ = 512870131 is a prime.

It is not a weakly prime, because it can be changed into another prime (512870317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256435193 + 256435194.

It is an arithmetic number, because the mean of its divisors is an integer number (256435194).

Almost surely, 2^512870387 is an apocalyptic number.

512870387 is a deficient number, since it is larger than the sum of its proper divisors (1).

512870387 is an equidigital number, since it uses as much as digits as its factorization.

512870387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 512870387 is about 22646.6418481858. The cubic root of 512870387 is about 800.4530699236.

The spelling of 512870387 in words is "five hundred twelve million, eight hundred seventy thousand, three hundred eighty-seven".