64967285 has 8 divisors (see below), whose sum is σ = 82546776. Its totient is φ = 48916480.

The previous prime is 64967269. The next prime is 64967311. The reversal of 64967285 is 58276946.

It can be written as a sum of positive squares in 4 ways, for example, as 7828804 + 57138481 = 2798^2 + 7559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64967285 - 2⁴ = 64967269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382076 + ... + 382245.

It is an arithmetic number, because the mean of its divisors is an integer number (10318347).

Almost surely, 2^64967285 is an apocalyptic number.

It is an amenable number.

64967285 is a deficient number, since it is larger than the sum of its proper divisors (17579491).

64967285 is a wasteful number, since it uses less digits than its factorization.

64967285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764343.

The product of its digits is 725760, while the sum is 47.

The square root of 64967285 is about 8060.2285947732. The cubic root of 64967285 is about 402.0051091320.

The spelling of 64967285 in words is "sixty-four million, nine hundred sixty-seven thousand, two hundred eighty-five".