1878863 has 8 divisors (see below), whose sum is σ = 2163840. Its totient is φ = 1598040.

The previous prime is 1878841. The next prime is 1878869. The reversal of 1878863 is 3688781.

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 1878863 - 2¹⁰ = 1877839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1878863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8 + ... + 1938.

It is an arithmetic number, because the mean of its divisors is an integer number (270480).

2^1878863 is an apocalyptic number.

1878863 is a deficient number, since it is larger than the sum of its proper divisors (284977).

1878863 is a wasteful number, since it uses less digits than its factorization.

1878863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077.

The product of its digits is 64512, while the sum is 41.

The square root of 1878863 is about 1370.7162361335. The cubic root of 1878863 is about 123.3952298678.

The spelling of 1878863 in words is "one million, eight hundred seventy-eight thousand, eight hundred sixty-three".