64192685 has 4 divisors (see below), whose sum is σ = 77031228. Its totient is φ = 51354144.

The previous prime is 64192657. The next prime is 64192691. The reversal of 64192685 is 58629146.

It is a happy number.

64192685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42159049 + 22033636 = 6493^2 + 4694^2 .

It is a cyclic number.

It is not a de Polignac number, because 64192685 - 2¹² = 64188589 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6419264 + ... + 6419273.

It is an arithmetic number, because the mean of its divisors is an integer number (19257807).

Almost surely, 2^64192685 is an apocalyptic number.

It is an amenable number.

64192685 is a deficient number, since it is larger than the sum of its proper divisors (12838543).

64192685 is a wasteful number, since it uses less digits than its factorization.

64192685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838542.

The product of its digits is 103680, while the sum is 41.

The square root of 64192685 is about 8012.0337617861. The cubic root of 64192685 is about 400.4010248966.

The spelling of 64192685 in words is "sixty-four million, one hundred ninety-two thousand, six hundred eighty-five".