64075869 has 24 divisors (see below), whose sum is σ = 108736992. Its totient is φ = 35845920.

The previous prime is 64075849. The next prime is 64075883. The reversal of 64075869 is 96857046.

64075869 is a `hidden beast` number, since 64 + 0 + 7 + 586 + 9 = 666.

It is not a de Polignac number, because 64075869 - 2⁷ = 64075741 is a prime.

It is a super-2 number, since 2×64075869² = 8211433976210322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64075849) 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, 23607 + ... + 26180.

It is an arithmetic number, because the mean of its divisors is an integer number (4530708).

Almost surely, 2^64075869 is an apocalyptic number.

It is an amenable number.

64075869 is a deficient number, since it is larger than the sum of its proper divisors (44661123).

64075869 is a wasteful number, since it uses less digits than its factorization.

64075869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49817 (or 49814 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 64075869 is about 8004.7404080332. The cubic root of 64075869 is about 400.1579980000.

The spelling of 64075869 in words is "sixty-four million, seventy-five thousand, eight hundred sixty-nine".