65064971 has 4 divisors (see below), whose sum is σ = 65084472. Its totient is φ = 65045472.

The previous prime is 65064959. The next prime is 65064983. The reversal of 65064971 is 17946056.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (65064959) and next prime (65064983).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65064971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65064931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341 + ... + 11886.

It is an arithmetic number, because the mean of its divisors is an integer number (16271118).

Almost surely, 2^65064971 is an apocalyptic number.

65064971 is a deficient number, since it is larger than the sum of its proper divisors (19501).

65064971 is a wasteful number, since it uses less digits than its factorization.

65064971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 65064971 is about 8066.2860722888. The cubic root of 65064971 is about 402.2064956453.

The spelling of 65064971 in words is "sixty-five million, sixty-four thousand, nine hundred seventy-one".