65386971 has 12 divisors (see below), whose sum is σ = 101713248. Its totient is φ = 40238064.

The previous prime is 65386969. The next prime is 65386973. The reversal of 65386971 is 17968356.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65386969) and next prime (65386973).

It is not a de Polignac number, because 65386971 - 2¹ = 65386969 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65386973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279315 + ... + 279548.

It is an arithmetic number, because the mean of its divisors is an integer number (8476104).

Almost surely, 2^65386971 is an apocalyptic number.

65386971 is a deficient number, since it is larger than the sum of its proper divisors (36326277).

65386971 is a wasteful number, since it uses less digits than its factorization.

65386971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558882 (or 558879 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 65386971 is about 8086.2210580716. The cubic root of 65386971 is about 402.8688972944.

The spelling of 65386971 in words is "sixty-five million, three hundred eighty-six thousand, nine hundred seventy-one".