64577892 has 12 divisors (see below), whose sum is σ = 150681776. Its totient is φ = 21525960.

The previous prime is 64577881. The next prime is 64577893. The reversal of 64577892 is 29877546.

64577892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64577893) 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, 2690734 + ... + 2690757.

Almost surely, 2^64577892 is an apocalyptic number.

It is an amenable number.

64577892 is an abundant number, since it is smaller than the sum of its proper divisors (86103884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64577892 is a wasteful number, since it uses less digits than its factorization.

64577892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381498 (or 5381496 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 64577892 is about 8036.0370830404. The cubic root of 64577892 is about 401.2003360471.

The spelling of 64577892 in words is "sixty-four million, five hundred seventy-seven thousand, eight hundred ninety-two".