511487 has 2 divisors, whose sum is σ = 511488. Its totient is φ = 511486.

The previous prime is 511477. The next prime is 511507. The reversal of 511487 is 784115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511487 - 2¹⁰ = 510463 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255743 + 255744.

It is an arithmetic number, because the mean of its divisors is an integer number (255744).

2⁵¹¹⁴⁸⁷ is an apocalyptic number.

511487 is a deficient number, since it is larger than the sum of its proper divisors (1).

511487 is an equidigital number, since it uses as much as digits as its factorization.

511487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 26.

The square root of 511487 is about 715.1831933148. The cubic root of 511487 is about 79.9732723214.

The spelling of 511487 in words is "five hundred eleven thousand, four hundred eighty-seven".