64671832 has 8 divisors (see below), whose sum is σ = 121259700. Its totient is φ = 32335912.

The previous prime is 64671823. The next prime is 64671851. The reversal of 64671832 is 23817646.

64671832 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 (8).

It is a junction number, because it is equal to n+sod(n) for n = 64671791 and 64671800.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4041982 + ... + 4041997.

Almost surely, 2^64671832 is an apocalyptic number.

It is an amenable number.

64671832 is a deficient number, since it is larger than the sum of its proper divisors (56587868).

64671832 is a wasteful number, since it uses less digits than its factorization.

64671832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083985 (or 8083981 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 64671832 is about 8041.8798797296. The cubic root of 64671832 is about 401.3947808132.

The spelling of 64671832 in words is "sixty-four million, six hundred seventy-one thousand, eight hundred thirty-two".