65709064 has 8 divisors (see below), whose sum is σ = 123204510. Its totient is φ = 32854528.

The previous prime is 65709047. The next prime is 65709071. The reversal of 65709064 is 46090756.

It can be written as a sum of positive squares in only one way, i.e., 60186564 + 5522500 = 7758^2 + 2350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106809 + ... + 4106824.

Almost surely, 2^65709064 is an apocalyptic number.

It is an amenable number.

65709064 is a deficient number, since it is larger than the sum of its proper divisors (57495446).

65709064 is a wasteful number, since it uses less digits than its factorization.

65709064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213639 (or 8213635 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 65709064 is about 8106.1127551990. The cubic root of 65709064 is about 403.5293181962.

The spelling of 65709064 in words is "sixty-five million, seven hundred nine thousand, sixty-four".