65470312 has 8 divisors (see below), whose sum is σ = 122756850. Its totient is φ = 32735152.

The previous prime is 65470283. The next prime is 65470343. The reversal of 65470312 is 21307456.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 29877156 = 5966^2 + 5466^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4091887 + ... + 4091902.

Almost surely, 2^65470312 is an apocalyptic number.

It is an amenable number.

65470312 is a deficient number, since it is larger than the sum of its proper divisors (57286538).

65470312 is a wasteful number, since it uses less digits than its factorization.

65470312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8183795 (or 8183791 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 65470312 is about 8091.3726894761. The cubic root of 65470312 is about 403.0399876582.

Adding to 65470312 its reverse (21307456), we get a palindrome (86777768).

The spelling of 65470312 in words is "sixty-five million, four hundred seventy thousand, three hundred twelve".