487710217 has 2 divisors, whose sum is σ = 487710218. Its totient is φ = 487710216.

The previous prime is 487710203. The next prime is 487710233. The reversal of 487710217 is 712017784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485056576 + 2653641 = 22024^2 + 1629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487710217 is a prime.

It is a super-2 number, since 2×487710217² = 475722511532374178, which contains 22 as substring.

It is equal to p_25741891 and since 487710217 and 25741891 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 (487710247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243855108 + 243855109.

It is an arithmetic number, because the mean of its divisors is an integer number (243855109).

Almost surely, 2^487710217 is an apocalyptic number.

It is an amenable number.

487710217 is a deficient number, since it is larger than the sum of its proper divisors (1).

487710217 is an equidigital number, since it uses as much as digits as its factorization.

487710217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 487710217 is about 22084.1621303594. The cubic root of 487710217 is about 787.1435683372.

The spelling of 487710217 in words is "four hundred eighty-seven million, seven hundred ten thousand, two hundred seventeen".