487712681 has 2 divisors, whose sum is σ = 487712682. Its totient is φ = 487712680.

The previous prime is 487712647. The next prime is 487712683. The reversal of 487712681 is 186217784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266179225 + 221533456 = 16315^2 + 14884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487712681 is a prime.

It is a super-2 number, since 2×487712681² = 475727318416415522, which contains 22 as substring.

Together with 487712683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (487712683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243856340 + 243856341.

It is an arithmetic number, because the mean of its divisors is an integer number (243856341).

Almost surely, 2^487712681 is an apocalyptic number.

It is an amenable number.

487712681 is a deficient number, since it is larger than the sum of its proper divisors (1).

487712681 is an equidigital number, since it uses as much as digits as its factorization.

487712681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 44.

The square root of 487712681 is about 22084.2179168745. The cubic root of 487712681 is about 787.1448939321.

The spelling of 487712681 in words is "four hundred eighty-seven million, seven hundred twelve thousand, six hundred eighty-one".