4857869 has 4 divisors (see below), whose sum is σ = 5143644. Its totient is φ = 4572096.

The previous prime is 4857829. The next prime is 4857893. The reversal of 4857869 is 9687584.

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 2439844 + 2418025 = 1562^2 + 1555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4857869 is a prime.

It is a super-2 number, since 2×4857869² = 47197782442322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 8⁵ + 5⁵ + 7⁵ + 8⁵ + 6⁶ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4857829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142862 + ... + 142895.

It is an arithmetic number, because the mean of its divisors is an integer number (1285911).

Almost surely, 2^4857869 is an apocalyptic number.

It is an amenable number.

4857869 is a deficient number, since it is larger than the sum of its proper divisors (285775).

4857869 is a wasteful number, since it uses less digits than its factorization.

4857869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285774.

The product of its digits is 483840, while the sum is 47.

The square root of 4857869 is about 2204.0573948970. The cubic root of 4857869 is about 169.3617241992.

The spelling of 4857869 in words is "four million, eight hundred fifty-seven thousand, eight hundred sixty-nine".