878143 has 8 divisors (see below), whose sum is σ = 1009280. Its totient is φ = 748440.

The previous prime is 878131. The next prime is 878147. The reversal of 878143 is 341878.

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 878143 - 2¹³ = 869951 is a prime.

It is a super-2 number, since 2×878143² = 1542270256898, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

878143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878147) 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, 2128 + ... + 2506.

It is an arithmetic number, because the mean of its divisors is an integer number (126160).

2⁸⁷⁸¹⁴³ is an apocalyptic number.

878143 is a deficient number, since it is larger than the sum of its proper divisors (131137).

878143 is a wasteful number, since it uses less digits than its factorization.

878143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717.

The product of its digits is 5376, while the sum is 31.

The square root of 878143 is about 937.0928449199. The cubic root of 878143 is about 95.7609431055.

The spelling of 878143 in words is "eight hundred seventy-eight thousand, one hundred forty-three".