64817412 has 24 divisors (see below), whose sum is σ = 164990112. Its totient is φ = 19641600.

The previous prime is 64817411. The next prime is 64817419. The reversal of 64817412 is 21471846.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (64817411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245389 + ... + 245652.

It is an arithmetic number, because the mean of its divisors is an integer number (6874588).

Almost surely, 2^64817412 is an apocalyptic number.

It is an amenable number.

64817412 is an abundant number, since it is smaller than the sum of its proper divisors (100172700).

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

64817412 is a wasteful number, since it uses less digits than its factorization.

64817412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491059 (or 491057 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 64817412 is about 8050.9261579026. The cubic root of 64817412 is about 401.6957426501.

The spelling of 64817412 in words is "sixty-four million, eight hundred seventeen thousand, four hundred twelve".