65740671 has 24 divisors (see below), whose sum is σ = 97961136. Its totient is φ = 42456960.

The previous prime is 65740669. The next prime is 65740699. The reversal of 65740671 is 17604756.

It is not a de Polignac number, because 65740671 - 2¹ = 65740669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65741671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59601 + ... + 60693.

It is an arithmetic number, because the mean of its divisors is an integer number (4081714).

Almost surely, 2^65740671 is an apocalyptic number.

65740671 is a deficient number, since it is larger than the sum of its proper divisors (32220465).

65740671 is a wasteful number, since it uses less digits than its factorization.

65740671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 65740671 is about 8108.0620989235. The cubic root of 65740671 is about 403.5940089503.

It can be divided in two parts, 657 and 40671, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 65740671 in words is "sixty-five million, seven hundred forty thousand, six hundred seventy-one".