57284869 has 8 divisors (see below), whose sum is σ = 60392448. Its totient is φ = 54256080.

The previous prime is 57284863. The next prime is 57284873. The reversal of 57284869 is 96848275.

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 57284869 - 2⁵ = 57284837 is a prime.

It is a super-4 number, since 4×57284869⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57284863) 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, 18202 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (7549056).

Almost surely, 2^57284869 is an apocalyptic number.

It is an amenable number.

57284869 is a deficient number, since it is larger than the sum of its proper divisors (3107579).

57284869 is a wasteful number, since it uses less digits than its factorization.

57284869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39395.

The product of its digits is 967680, while the sum is 49.

The square root of 57284869 is about 7568.6768328421. The cubic root of 57284869 is about 385.4901700662.

The spelling of 57284869 in words is "fifty-seven million, two hundred eighty-four thousand, eight hundred sixty-nine".