64885743 has 24 divisors (see below), whose sum is σ = 101206560. Its totient is φ = 39821760.

The previous prime is 64885721. The next prime is 64885747. The reversal of 64885743 is 34758846.

It is not a de Polignac number, because 64885743 - 2¹² = 64881647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64885747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76918 + ... + 77756.

It is an arithmetic number, because the mean of its divisors is an integer number (4216940).

Almost surely, 2^64885743 is an apocalyptic number.

64885743 is a deficient number, since it is larger than the sum of its proper divisors (36320817).

64885743 is a wasteful number, since it uses less digits than its factorization.

64885743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519 (or 1516 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 64885743 is about 8055.1687133169. The cubic root of 64885743 is about 401.8368499606.

The spelling of 64885743 in words is "sixty-four million, eight hundred eighty-five thousand, seven hundred forty-three".