64338785 has 16 divisors (see below), whose sum is σ = 89356800. Its totient is φ = 43557696.

The previous prime is 64338763. The next prime is 64338809. The reversal of 64338785 is 58783346.

It is not a de Polignac number, because 64338785 - 2¹² = 64334689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8870 + ... + 14399.

It is an arithmetic number, because the mean of its divisors is an integer number (5584800).

Almost surely, 2^64338785 is an apocalyptic number.

It is an amenable number.

64338785 is a deficient number, since it is larger than the sum of its proper divisors (25018015).

64338785 is a wasteful number, since it uses less digits than its factorization.

64338785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23360.

The product of its digits is 483840, while the sum is 44.

The square root of 64338785 is about 8021.1461151135. The cubic root of 64338785 is about 400.7045603415.

The spelling of 64338785 in words is "sixty-four million, three hundred thirty-eight thousand, seven hundred eighty-five".