64822685 has 8 divisors (see below), whose sum is σ = 80469720. Its totient is φ = 50069824.

The previous prime is 64822679. The next prime is 64822691. The reversal of 64822685 is 58622846.

It is an interprime number because it is at equal distance from previous prime (64822679) and next prime (64822691).

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 64288324 = 731^2 + 8018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64822685 - 2²⁴ = 48045469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223382 + ... + 223671.

It is an arithmetic number, because the mean of its divisors is an integer number (10058715).

Almost surely, 2^64822685 is an apocalyptic number.

It is an amenable number.

64822685 is a deficient number, since it is larger than the sum of its proper divisors (15647035).

64822685 is a wasteful number, since it uses less digits than its factorization.

64822685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447087.

The product of its digits is 184320, while the sum is 41.

The square root of 64822685 is about 8051.2536290940. The cubic root of 64822685 is about 401.7066352182.

The spelling of 64822685 in words is "sixty-four million, eight hundred twenty-two thousand, six hundred eighty-five".