64838711 has 12 divisors (see below), whose sum is σ = 77181192. Its totient is φ = 54281808.

The previous prime is 64838681. The next prime is 64838729. The reversal of 64838711 is 11783846.

It is not a de Polignac number, because 64838711 - 2¹⁴ = 64822327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64838611) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 13280 + ... + 17493.

It is an arithmetic number, because the mean of its divisors is an integer number (6431766).

Almost surely, 2^64838711 is an apocalyptic number.

64838711 is a deficient number, since it is larger than the sum of its proper divisors (12342481).

64838711 is a wasteful number, since it uses less digits than its factorization.

64838711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30830 (or 30823 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 64838711 is about 8052.2488163245. The cubic root of 64838711 is about 401.7397369020.

The spelling of 64838711 in words is "sixty-four million, eight hundred thirty-eight thousand, seven hundred eleven".