64104479 has 4 divisors (see below), whose sum is σ = 64123176. Its totient is φ = 64085784.

The previous prime is 64104451. The next prime is 64104493. The reversal of 64104479 is 97440146.

64104479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97440146 = 2 ⋅48720073.

It is a cyclic number.

It is not a de Polignac number, because 64104479 - 2⁸ = 64104223 is a prime.

It is a super-2 number, since 2×64104479² = 8218768455722882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64107479) 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 3 ways as a sum of consecutive naturals, for example, 2564 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (16030794).

Almost surely, 2^64104479 is an apocalyptic number.

64104479 is a deficient number, since it is larger than the sum of its proper divisors (18697).

64104479 is a wasteful number, since it uses less digits than its factorization.

64104479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18696.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 64104479 is about 8006.5272746678. The cubic root of 64104479 is about 400.2175462460.

The spelling of 64104479 in words is "sixty-four million, one hundred four thousand, four hundred seventy-nine".