64388345 has 8 divisors (see below), whose sum is σ = 88304064. Its totient is φ = 44151984.

The previous prime is 64388341. The next prime is 64388347. The reversal of 64388345 is 54388346.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 64388345 - 2² = 64388341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64388341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919799 + ... + 919868.

It is an arithmetic number, because the mean of its divisors is an integer number (11038008).

Almost surely, 2^64388345 is an apocalyptic number.

It is an amenable number.

64388345 is a deficient number, since it is larger than the sum of its proper divisors (23915719).

64388345 is a wasteful number, since it uses less digits than its factorization.

64388345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839679.

The product of its digits is 276480, while the sum is 41.

The square root of 64388345 is about 8024.2348544892. The cubic root of 64388345 is about 400.8074211644.

Subtracting from 64388345 its reverse (54388346), we obtain a palindrome (9999999).

It can be divided in two parts, 643 and 88345, that added together give a palindrome (88988).

The spelling of 64388345 in words is "sixty-four million, three hundred eighty-eight thousand, three hundred forty-five".