65471687 has 2 divisors, whose sum is σ = 65471688. Its totient is φ = 65471686.

The previous prime is 65471657. The next prime is 65471689. The reversal of 65471687 is 78617456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65471687 - 2¹⁴ = 65455303 is a prime.

Together with 65471689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65471689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32735843 + 32735844.

It is an arithmetic number, because the mean of its divisors is an integer number (32735844).

Almost surely, 2^65471687 is an apocalyptic number.

65471687 is a deficient number, since it is larger than the sum of its proper divisors (1).

65471687 is an equidigital number, since it uses as much as digits as its factorization.

65471687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The square root of 65471687 is about 8091.4576560716. The cubic root of 65471687 is about 403.0428091717.

The spelling of 65471687 in words is "sixty-five million, four hundred seventy-one thousand, six hundred eighty-seven".