65007740 has 48 divisors (see below), whose sum is σ = 164236800. Its totient is φ = 21114432.

The previous prime is 65007727. The next prime is 65007749. The reversal of 65007740 is 4770056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65007749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9560 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (3421600).

Almost surely, 2^65007740 is an apocalyptic number.

It is an amenable number.

65007740 is an abundant number, since it is smaller than the sum of its proper divisors (99229060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65007740 is a wasteful number, since it uses less digits than its factorization.

65007740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24474 (or 24472 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 65007740 is about 8062.7377484326. The cubic root of 65007740 is about 402.0885344139.

Adding to 65007740 its reverse (4770056), we get a palindrome (69777796).

The spelling of 65007740 in words is "sixty-five million, seven thousand, seven hundred forty".