65378764 has 24 divisors (see below), whose sum is σ = 127861776. Its totient is φ = 28992000.

The previous prime is 65378759. The next prime is 65378767. The reversal of 65378764 is 46787356.

It is not an unprimeable number, because it can be changed into a prime (65378767) 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, 16317 + ... + 19924.

It is an arithmetic number, because the mean of its divisors is an integer number (5327574).

Almost surely, 2^65378764 is an apocalyptic number.

It is an amenable number.

65378764 is a deficient number, since it is larger than the sum of its proper divisors (62483012).

65378764 is a wasteful number, since it uses less digits than its factorization.

65378764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36297 (or 36295 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 65378764 is about 8085.7135739525. The cubic root of 65378764 is about 402.8520413197.

The spelling of 65378764 in words is "sixty-five million, three hundred seventy-eight thousand, seven hundred sixty-four".