64914845 has 8 divisors (see below), whose sum is σ = 77996760. Its totient is φ = 51865920.

The previous prime is 64914833. The next prime is 64914851. The reversal of 64914845 is 54841946.

It can be written as a sum of positive squares in 4 ways, for example, as 27227524 + 37687321 = 5218^2 + 6139^2 .

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

It is not a de Polignac number, because 64914845 - 2⁶ = 64914781 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3686 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (9749595).

Almost surely, 2^64914845 is an apocalyptic number.

It is an amenable number.

64914845 is a deficient number, since it is larger than the sum of its proper divisors (13081915).

64914845 is a wasteful number, since it uses less digits than its factorization.

64914845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16495.

The product of its digits is 138240, while the sum is 41.

The square root of 64914845 is about 8056.9749285945. The cubic root of 64914845 is about 401.8969171267.

The spelling of 64914845 in words is "sixty-four million, nine hundred fourteen thousand, eight hundred forty-five".