64071284 has 12 divisors (see below), whose sum is σ = 116999904. Its totient is φ = 30642744.

The previous prime is 64071281. The next prime is 64071299. The reversal of 64071284 is 48217046.

It is a self number, because there is not a number n which added to its sum of digits gives 64071284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64071281) 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, 348122 + ... + 348305.

It is an arithmetic number, because the mean of its divisors is an integer number (9749992).

Almost surely, 2^64071284 is an apocalyptic number.

It is an amenable number.

64071284 is a deficient number, since it is larger than the sum of its proper divisors (52928620).

64071284 is a wasteful number, since it uses less digits than its factorization.

64071284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696454 (or 696452 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64071284 is about 8004.4540101121. The cubic root of 64071284 is about 400.1484532306.

The spelling of 64071284 in words is "sixty-four million, seventy-one thousand, two hundred eighty-four".