64771316 has 12 divisors (see below), whose sum is σ = 113920800. Its totient is φ = 32222520.

The previous prime is 64771313. The next prime is 64771327. The reversal of 64771316 is 61317746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64771313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39890 + ... + 41481.

It is an arithmetic number, because the mean of its divisors is an integer number (9493400).

Almost surely, 2^64771316 is an apocalyptic number.

It is an amenable number.

64771316 is a deficient number, since it is larger than the sum of its proper divisors (49149484).

64771316 is a wasteful number, since it uses less digits than its factorization.

64771316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81574 (or 81572 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 64771316 is about 8048.0628725178. The cubic root of 64771316 is about 401.6004958249.

The spelling of 64771316 in words is "sixty-four million, seven hundred seventy-one thousand, three hundred sixteen".