64786854 has 32 divisors (see below), whose sum is σ = 142767360. Its totient is φ = 19436000.

The previous prime is 64786849. The next prime is 64786867. The reversal of 64786854 is 45868746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1807 + ... + 11525.

It is an arithmetic number, because the mean of its divisors is an integer number (4461480).

Almost surely, 2^64786854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64786854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71383680).

64786854 is an abundant number, since it is smaller than the sum of its proper divisors (77980506).

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

64786854 is a wasteful number, since it uses less digits than its factorization.

64786854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9836.

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

The square root of 64786854 is about 8049.0281400924. The cubic root of 64786854 is about 401.6326065902.

The spelling of 64786854 in words is "sixty-four million, seven hundred eighty-six thousand, eight hundred fifty-four".