2858869 has 8 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 2582256.

The previous prime is 2858833. The next prime is 2858893. The reversal of 2858869 is 9688582.

It is a happy number.

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 2858869 - 2⁷ = 2858741 is a prime.

It is a super-2 number, since 2×2858869² = 16346263918322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 2950.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

2^2858869 is an apocalyptic number.

It is an amenable number.

2858869 is a deficient number, since it is larger than the sum of its proper divisors (286091).

2858869 is a wasteful number, since it uses less digits than its factorization.

2858869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739.

The product of its digits is 276480, while the sum is 46.

The square root of 2858869 is about 1690.8190323036. The cubic root of 2858869 is about 141.9269114052.

The spelling of 2858869 in words is "two million, eight hundred fifty-eight thousand, eight hundred sixty-nine".