64685412 has 48 divisors (see below), whose sum is σ = 182952000. Its totient is φ = 19601280.

The previous prime is 64685393. The next prime is 64685429. The reversal of 64685412 is 21458646.

64685412 is a `hidden beast` number, since 646 + 8 + 5 + 4 + 1 + 2 = 666.

64685412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26037 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (3811500).

Almost surely, 2^64685412 is an apocalyptic number.

It is an amenable number.

64685412 is an abundant number, since it is smaller than the sum of its proper divisors (118266588).

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

64685412 is a wasteful number, since it uses less digits than its factorization.

64685412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54473 (or 54465 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 64685412 is about 8042.7241653559. The cubic root of 64685412 is about 401.4228742374.

The spelling of 64685412 in words is "sixty-four million, six hundred eighty-five thousand, four hundred twelve".