65343871 has 8 divisors (see below), whose sum is σ = 66847904. Its totient is φ = 63853920.

The previous prime is 65343853. The next prime is 65343881. The reversal of 65343871 is 17834356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65343871 - 2¹³ = 65335679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65343871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65343821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6166 + ... + 12988.

It is an arithmetic number, because the mean of its divisors is an integer number (8355988).

Almost surely, 2^65343871 is an apocalyptic number.

65343871 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

65343871 is a deficient number, since it is larger than the sum of its proper divisors (1504033).

65343871 is a wasteful number, since it uses less digits than its factorization.

65343871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041.

The product of its digits is 60480, while the sum is 37.

The square root of 65343871 is about 8083.5555914461. Note that the first 4 decimals coincide. The cubic root of 65343871 is about 402.7803604615.

The spelling of 65343871 in words is "sixty-five million, three hundred forty-three thousand, eight hundred seventy-one".