65448971 has 4 divisors (see below), whose sum is σ = 74798832. Its totient is φ = 56099112.

The previous prime is 65448959. The next prime is 65448983. The reversal of 65448971 is 17984456.

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 (65448959) and next prime (65448983).

It is a cyclic number.

It is not a de Polignac number, because 65448971 - 2¹⁰ = 65447947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65448371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4674920 + ... + 4674933.

It is an arithmetic number, because the mean of its divisors is an integer number (18699708).

Almost surely, 2^65448971 is an apocalyptic number.

65448971 is a deficient number, since it is larger than the sum of its proper divisors (9349861).

65448971 is an equidigital number, since it uses as much as digits as its factorization.

65448971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9349860.

The product of its digits is 241920, while the sum is 44.

The square root of 65448971 is about 8090.0538317121. The cubic root of 65448971 is about 402.9961906513.

The spelling of 65448971 in words is "sixty-five million, four hundred forty-eight thousand, nine hundred seventy-one".