64629785 has 16 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 46583040.

The previous prime is 64629781. The next prime is 64629797. The reversal of 64629785 is 58792646.

64629785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64629785 - 2² = 64629781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64629781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016 + ... + 11414.

It is an arithmetic number, because the mean of its divisors is an integer number (5335200).

Almost surely, 2^64629785 is an apocalyptic number.

It is an amenable number.

64629785 is a deficient number, since it is larger than the sum of its proper divisors (20733415).

64629785 is a wasteful number, since it uses less digits than its factorization.

64629785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528.

The product of its digits is 725760, while the sum is 47.

The square root of 64629785 is about 8039.2652027409. The cubic root of 64629785 is about 401.3077717563.

The spelling of 64629785 in words is "sixty-four million, six hundred twenty-nine thousand, seven hundred eighty-five".