65740608 has 84 divisors (see below), whose sum is σ = 198384160. Its totient is φ = 20756736.

The previous prime is 65740583. The next prime is 65740643. The reversal of 65740608 is 80604756.

It is a happy number.

65740608 is a `hidden beast` number, since 6 + 5 + 7 + 40 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7941 + ... + 13947.

Almost surely, 2^65740608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65740608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99192080).

65740608 is an abundant number, since it is smaller than the sum of its proper divisors (132643552).

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

65740608 is a wasteful number, since it uses less digits than its factorization.

65740608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044 (or 6031 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 65740608 is about 8108.0582139005. The cubic root of 65740608 is about 403.5938800274.

The spelling of 65740608 in words is "sixty-five million, seven hundred forty thousand, six hundred eight".