64799144 has 16 divisors (see below), whose sum is σ = 123210720. Its totient is φ = 31942960.

The previous prime is 64799143. The next prime is 64799153. The reversal of 64799144 is 44199746.

64799144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64799095 and 64799104.

It is not an unprimeable number, because it can be changed into a prime (64799143) 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, 56474 + ... + 57609.

It is an arithmetic number, because the mean of its divisors is an integer number (7700670).

Almost surely, 2^64799144 is an apocalyptic number.

It is an amenable number.

64799144 is a deficient number, since it is larger than the sum of its proper divisors (58411576).

64799144 is a wasteful number, since it uses less digits than its factorization.

64799144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114160 (or 114156 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 64799144 is about 8049.7915500962. The cubic root of 64799144 is about 401.6580014162.

The spelling of 64799144 in words is "sixty-four million, seven hundred ninety-nine thousand, one hundred forty-four".