64589870 has 16 divisors (see below), whose sum is σ = 118966320. Its totient is φ = 25234944.

The previous prime is 64589867. The next prime is 64589879. The reversal of 64589870 is 7898546.

64589870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64589879) 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 7 ways as a sum of consecutive naturals, for example, 74675 + ... + 75534.

It is an arithmetic number, because the mean of its divisors is an integer number (7435395).

Almost surely, 2^64589870 is an apocalyptic number.

64589870 is a deficient number, since it is larger than the sum of its proper divisors (54376450).

64589870 is a wasteful number, since it uses less digits than its factorization.

64589870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150259.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 64589870 is about 8036.7823163254. The cubic root of 64589870 is about 401.2251395848.

The spelling of 64589870 in words is "sixty-four million, five hundred eighty-nine thousand, eight hundred seventy".