64854867 has 32 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 33513120.

The previous prime is 64854799. The next prime is 64854893. The reversal of 64854867 is 76845846.

It is not a de Polignac number, because 64854867 - 2¹¹ = 64852819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64854667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50884 + ... + 52142.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^64854867 is an apocalyptic number.

64854867 is a deficient number, since it is larger than the sum of its proper divisors (43525293).

64854867 is a wasteful number, since it uses less digits than its factorization.

64854867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its digits is 1290240, while the sum is 48.

The square root of 64854867 is about 8053.2519518515. The cubic root of 64854867 is about 401.7731015802.

The spelling of 64854867 in words is "sixty-four million, eight hundred fifty-four thousand, eight hundred sixty-seven".