64849711 has 4 divisors (see below), whose sum is σ = 64881352. Its totient is φ = 64818072.

The previous prime is 64849709. The next prime is 64849721. The reversal of 64849711 is 11794846.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64849711 - 2¹ = 64849709 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 (64849721) 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 3 ways as a sum of consecutive naturals, for example, 12516 + ... + 16921.

It is an arithmetic number, because the mean of its divisors is an integer number (16220338).

Almost surely, 2^64849711 is an apocalyptic number.

64849711 is a deficient number, since it is larger than the sum of its proper divisors (31641).

64849711 is a wasteful number, since it uses less digits than its factorization.

64849711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31640.

The product of its digits is 48384, while the sum is 40.

The square root of 64849711 is about 8052.9318263599. The cubic root of 64849711 is about 401.7624542323.

The spelling of 64849711 in words is "sixty-four million, eight hundred forty-nine thousand, seven hundred eleven".