67852821 has 8 divisors (see below), whose sum is σ = 90582880. Its totient is φ = 45178992.

The previous prime is 67852751. The next prime is 67852847. The reversal of 67852821 is 12825876.

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

It is not a de Polignac number, because 67852821 - 2¹⁴ = 67836437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67852821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67852861) 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, 11155 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (11322860).

Almost surely, 2^67852821 is an apocalyptic number.

It is an amenable number.

67852821 is a deficient number, since it is larger than the sum of its proper divisors (22730059).

67852821 is a wasteful number, since it uses less digits than its factorization.

67852821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28115.

The product of its digits is 53760, while the sum is 39.

The square root of 67852821 is about 8237.2823795230. The cubic root of 67852821 is about 407.8708200706.

The spelling of 67852821 in words is "sixty-seven million, eight hundred fifty-two thousand, eight hundred twenty-one".