511878 has 8 divisors (see below), whose sum is σ = 1023768. Its totient is φ = 170624.

The previous prime is 511873. The next prime is 511891. The reversal of 511878 is 878115.

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

511878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42651 + ... + 42662.

It is an arithmetic number, because the mean of its divisors is an integer number (127971).

2⁵¹¹⁸⁷⁸ is an apocalyptic number.

511878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511878 is a wasteful number, since it uses less digits than its factorization.

511878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85318.

The product of its digits is 2240, while the sum is 30.

The square root of 511878 is about 715.4564976293. The cubic root of 511878 is about 79.9936453286.

The spelling of 511878 in words is "five hundred eleven thousand, eight hundred seventy-eight".