64806876 has 18 divisors (see below), whose sum is σ = 163817472. Its totient is φ = 21602280.

The previous prime is 64806871. The next prime is 64806899. The reversal of 64806876 is 67860846.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64806871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900060 + ... + 900131.

Almost surely, 2^64806876 is an apocalyptic number.

It is an amenable number.

64806876 is an abundant number, since it is smaller than the sum of its proper divisors (99010596).

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

64806876 is a wasteful number, since it uses less digits than its factorization.

64806876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800201 (or 1800196 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 64806876 is about 8050.2717966538. The cubic root of 64806876 is about 401.6739764017.

The spelling of 64806876 in words is "sixty-four million, eight hundred six thousand, eight hundred seventy-six".