2878869 has 8 divisors (see below), whose sum is σ = 4386880. Its totient is φ = 1645056.

The previous prime is 2878867. The next prime is 2878873. The reversal of 2878869 is 9688782.

It is a happy number.

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

It is not a de Polignac number, because 2878869 - 2¹ = 2878867 is a prime.

It is a super-2 number, since 2×2878869² = 16575773438322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878867) 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, 68524 + ... + 68565.

It is an arithmetic number, because the mean of its divisors is an integer number (548360).

2^2878869 is an apocalyptic number.

It is an amenable number.

2878869 is a deficient number, since it is larger than the sum of its proper divisors (1508011).

2878869 is a wasteful number, since it uses less digits than its factorization.

2878869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137099.

The product of its digits is 387072, while the sum is 48.

The square root of 2878869 is about 1696.7230180557. The cubic root of 2878869 is about 142.2571054525.

The spelling of 2878869 in words is "two million, eight hundred seventy-eight thousand, eight hundred sixty-nine".