64709284 has 12 divisors (see below), whose sum is σ = 114106608. Its totient is φ = 32107400.

The previous prime is 64709273. The next prime is 64709287. The reversal of 64709284 is 48290746.

It is not an unprimeable number, because it can be changed into a prime (64709287) 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, 61222 + ... + 62269.

It is an arithmetic number, because the mean of its divisors is an integer number (9508884).

Almost surely, 2^64709284 is an apocalyptic number.

It is an amenable number.

64709284 is a deficient number, since it is larger than the sum of its proper divisors (49397324).

64709284 is a wasteful number, since it uses less digits than its factorization.

64709284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123626 (or 123624 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 64709284 is about 8044.2081027283. The cubic root of 64709284 is about 401.4722495549.

The spelling of 64709284 in words is "sixty-four million, seven hundred nine thousand, two hundred eighty-four".