64869105 has 16 divisors (see below), whose sum is σ = 118617984. Its totient is φ = 29654400.

The previous prime is 64869083. The next prime is 64869107. The reversal of 64869105 is 50196846.

It is not a de Polignac number, because 64869105 - 2⁵ = 64869073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64869107) 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 15 ways as a sum of consecutive naturals, for example, 308796 + ... + 309005.

It is an arithmetic number, because the mean of its divisors is an integer number (7413624).

Almost surely, 2^64869105 is an apocalyptic number.

It is an amenable number.

64869105 is a deficient number, since it is larger than the sum of its proper divisors (53748879).

64869105 is a wasteful number, since it uses less digits than its factorization.

64869105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617816.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 64869105 is about 8054.1358940609. The cubic root of 64869105 is about 401.8025006941.

The spelling of 64869105 in words is "sixty-four million, eight hundred sixty-nine thousand, one hundred five".